Water fascinates and scares me. Hydroengineering, the abyss, the weather, science, tsunamis. The list is endless. If it wasn't for three simple atoms we would not be here Great content SB
How could you put a thumbs down to this information? These are universal truths that have been developed tested and understood by our great ancestors. Truths that have enabled the civilizations we enjoy today. Truths that have eased our suffering considerably. Thankyou!
Skill builder my arse that was fantastic and fascinating, one of the most informative run through water history and plumbing iv ever seen. The knowledge you guy's have needs to be passed along. Keep it up ...
Absolutely lovin Roger's latest series of educational films. If only I'd had someone like that when I was at school. Keep up the good work sir, you're doing a marvelous job.
Oh Roger! Another absolute belter my friend. Especially loved the bits about Caesar’s piss and the American desecration of the English language. But all joking aside, there was an amazing amount of interesting information in there; even stuff I didn’t learn when doing my chemistry degree many years ago! Loved it. Please keep ‘em coming 👍
Thank you, that was one of the best TH-cam videos I have ever watched. I did know quite a few bits in there, but there was also a lot of things I had never thought of, or never knew.
I’m loving these kinds of videos from Skill Builder, you’re a great host Roger, very entertaining. How about a video about locks/security? The different kinds of locks available, how secure they really are etc.
Good morning Roger, Could you cover the subject of exterior painting ie breathable paint v ordinary exterior paint and how it protects various substrates and can possible cause damp and failure to these substrates. Great channel by the way.
Roger, thank you for an excellent and most informative video. Even having been round the block for a while.. 76 here... I learned a few things. Was hoping you would mention the useful pressure cooler... A handy gizmo if there ever was one. KEEP UP the good work and thanks again.
Thanks - this is an outstanding presentation, a real tour de force covering so many aspects of this amazing substance, many of the properties of which are still being investigated.
I live part time in Scotland's highest village. The weather is severe. Learning the hard way, I switch off the Toby in the street, drain my tank, leave my house stop cock and all taps open in winter when I'm not there. Still I come back, fill up my tank and there is a little pipe that has burst under my bath. I know now that is because the pipe is going ever so slightly upwards, water is trapped and bursts the pipe which is not a biggie, better than having left water in the tank and flooding the whole house for weeks. Never mind, the hotel next to me had three burst pipes this winter while their heating was ON! Good to find out about hard and soft water, airlocks and expansion tanks etc. Vey informative for me as a layman. Presented with good old English humour.
nice to see the water level ,been using clear pipe water level for years to transfer levels on extensions even new build if slab is out ,great video again Roger
Plumbing can be quite complicated. I’m not a trained plumber but trained on pneumatics and Diesel engines, similar stuff. I switched over to building about 18yrs ago and after working on plumbing I’ve concluded that you need to be on the ball, cause it either won’t work or there will be catastrophic consequences. Sometimes us builders need to just get on with stuff and employing a trained plumber to crack on just isn’t an option. I’ve had no choice but to learn and get on with it. I’ve got a Boilermate3 boiler in my house and was insured with British Gas; they didn’t know how it worked; I fixed it myself in the end. I’m currently working in a 4 storey Victorian house with 6 bathrooms, 100yrs of pipe mods and we sussed it out removed all the lead and improved the water pressure. I think sometimes us builders deserve a little bit of credit. There is an assumption that we’re a bit thick. Training is always a good idea though.
Very entertaining. However, one mistake: In 'the continent' (eg: France) expanding water in hot water tanks is Not allowed to travel back down the cold feed. The excess water is either vented to the drain (via a 32mm waste pipe) or to an expansion vessel as you described. Every tank has to be fitted with a 'groupe de sécurité' which incorporates a pressure release valve (to a drain), a non-return valve and a tap. Enjoyable video, though!
Thanks Roger, great video. Having moved to a house which is on a private water supply earlier this year I must admit my water/plumbing knowledge had to get up to speed fast! This has been a really helpful addition. Cheers!
Great video Roger! Educated me and gave me a good chuckle too. Please do a video on the different types of water softener please. Very very hard water here and I think we're going to have to give in and have a salt softener as its ruining taps, etc.
I don't understand the negative thumbs down on this video, the information provided for FREE here is amazing. Very informative and engaging. I can't believe you cockney sparrows only have 260k subbies!!!
Thanks Roger: really entertaining video. Could I add something about the energy required to raise the temperature of water. You need 4200J to raise the temperature of one kilogram of water by one degree Celsius. So, a one litre kettle (1kg) filled with water at fifteen degrees needs 85x4200 joules to boil it. That would be 357000J. Bear with me. If, as some people do, you always fill up the kettle when all you need is 360ml for a mug of coffee then you have paid for about three times the energy required. The remaining 2/3 cools and next time you switch on, you have to heat it all up again under the same rules. This is what made immersion heaters in cylinders so inefficient even when the vessel seemed to be well lagged. I wouldn’t want this system now considering the cost of electricity. Another video could go into more detail about the anomalous expansion of water or change of state and latent heat. Maybe about how drinking water needs to be purified physically, biologically and chemically. Just suggestions. You are good in front of a white board. Keep it up!
Thanks John I remember all the joules stuff from college but never really used it much. I will look at your suggestions, it is hard to find the comedy in this stuff though.
Jesus Christ! Mr. Roger you should be The teacher with such a good technic of giving information to people. I just wanted to watch for a few minutes before work and here I am - writing comment after watching full video. Great content, Roger!
Just brilliant. Entertaining and, yes, informative. Water war coming to Ethiopia may be because of the Grand Renacsne Dam project......wonder if they have thought about water expansion😄. More please Roger, great stuff.
Well done Roger as you have created valuable in plumbing and general science which I enjoyed to learn more about it and I'm sure more people can learn about great things in PLUMBING. I hope to see more other videos from you.
Very good Rodger Well done good podcast a lot to take in across the board ... Plumb Bobs (plumbers to you and me) My brother is one god bless him.. A story I remember on a builders site and looked inside a tank cupboard and you thought the younger plumber had picked up loads of scrap copper pipes and just threw them in and where they landed that was the finished article (it was not a pretty site).. Took the Young Plumb Bob over to another house plumbed in by an older Plumber and opened the Tank Cupboard door (You could swear you could hear heavenly music when you opened the tank cupboard door :) ) .....When you looked inside the tank cupboard it looked like one of them Brass Tuba upside down (Tuba Brass Instruments) every pipe was in the right place and all clipped ..A piece of artwork for sure ... This is what we want or near as the younger plumber was informed so stop rushing around and take your time he was instructed ...Sad to say the younger Plumber did not take the advice ..The Younger Plumb Bob had a new mini van with a brand new roof rack. Nearly every night the Young Plumb Bob put his foot to the floor (boy racer) and gunned it up the street...On the Friday the older Plumbers tied his roof rack to the scaffold and watched him roar up the street ..Until his roof rack got to the end of the rope and catapulted off his car.
I believe in the US you are allowed to let it expand into the cold water line. However in many city water settings we need pressure reducing valves to knock down the pressure. In those cases my understanding is it's a closed system and you want an expansion tank into the hot water tank's cold line.
Many thanks Roger for great lecture. Can you do a bit more on airlocks some time. They do seem to defy common sense. A real airlock doesn't normally have a beermat over the end of the pipe. So I assume it's surface tension that holds the water together. Therefore the diameter of the pipe is important. Could you do a demo then for a couple of different dia pipes, say 15mm and another different size, as to what height of water they will support. It's majic! Thanks in anticipation. Also a bit of education to avoid airlocks - always open the valve furthest from the supply first and then work back towards the supply. Thanks again.
yea, Rodger, I have a question which have already addressed... the earth is 70-75% water that we need to survive. Why is man allowed to control it and thus kill thousands and perhaps millions of lives for monetary or selfish gains? Idk if you could broach this subject, but your skill at teaching could possibly open others ti the reality you've already addressed. God Bless You and keep on teacing
Was I the only one watching waiting for that beer mat to fall from the glass of water, mind you, the vid was editted wasn't it. On the subject of heating why don't you do a breakdown of the different types of heating boilers, oil and gas, vented and unvented. I love your dry wit on these vids, I think that's what makes them so "I just can't put the fackin phone down till I've watched all of it" I bet that glass of "water" was actually vodka, you kept taking a swig. Tap water in this country is jank. Keep em coming Rog 😄😄😄👍👍👍
Tiny Tony I was also waiting for that beer mat to drop off. Do you really imagine that if it happened we would have edited it out? We pray for stuff like that.
"if you have enough lead, that probably explains alot about me" HAHA, Roger you crack me up. Loving the videos, really enjoying the learning, most of all really enjoy watching your no nonsense approach to everything.
@@SkillBuilder I believe that most water companies in the UK add phosphoric acid to the water, this causes a coating to build up on the inside of the pipes and prevents the lead from being desolved. (Fun fact: if the phosphoric acid dosing stopped the coating would desolve and then the lead would be desolved at around twice the original rate!)
Fun fact. Money in Britain was also measured by weight, £1 of silver was 1lb in weight. The were 240 old pence in £1 because 240 silver pennies weighted 1lb
Interesting Roger , we live in a hard water area but I remember when we were kids one of my mates had a Rainwater tank outside the old kitchen window with a third tap inside over the kitchen sink for using the soft water for what ever reason , must’ve been an old idea that every house harvested its own rain water as all the houses along that street were the same
Great video. Can you do one sometime on surface tension and how the diameter of the pipe affects the chance of airlock (assume the smaller the diameter the more likely the airlock because of the relative increased effect of surface tension in a smaller diameter pipe). You can repeat the glass test to do that but use a piece of clear tubing and no mat on the lower end. See what column heights different diameters can support. The maths for surface tension is I guess fiendish but I'm guessing you can give us an alternative practical explanation. Thanks again.
Excellent video Roger, thank you 👍 I used to have an old coal powered Parkray, first winter had a loft full of superheated steam and all the pipes rattling - sounded like a battlefield, terrifying 😱😱. Really enjoyed the video & learnt a lot. Regards Tim
when I started doing the plumbimg, city and guilds, back in 1972 at the Brixton school of building, I learnt the - (, before that It was ImperiaL weights and measures, but I only found out this year, that a " pound sterling" = 240 pennys, = 1 lb ( pound ) in weight, so you would not have to cart a gallon of water around
20 gallons of water for a pint of beer is nothing! It takes 660 gallons to make a burger... We'll thats what google says, probably American stats! :)) though it is backed up by university research... Stick to the beer and crisps! Great video Roger! I'm doing some plumbing and heating renovation and moving pipes etc. this is great content to help us understand the "Why" bit...
This is an exact value in the UK since a UK pint is 20 fluid ounces (16 ounces to the pound) but not in the USA where their pint is not the same as a UK pint. just thought I would clarify it for non UK viewers.
Totally agree with Roger about Americans mangling the English language. Sadly the British press and people are also mangling it. Using phrases like from the get go instead of from the start or beginning, fall instead of autumn ( you fall asleep or fall over). I really dislike it. Yanks don't have a sense of humour, they're too busy being paranoid. Brilliant video, keep it up
Oh my favourite subject. At the moment it is push-back that gets my goat. The word 'resist' has gone. In general if the Americans change a word it is with two words. Pavement becomes side walk. I would disagree about the humour thing. Lots of Americans are very funny but they don't get the laconic irony of the British. The humour is just different and, like anyone, they are quick to jump when attacked.
Great content as usual Roger. Just one thing to correct at atmospheric pressure water expands 1600 times at 100 degrees Celsius not 1700 as you mentioned. Otherwise excellent.
You just reminded me of my first year carpentry and joinery,we had to transfer datums using a water level,funnily enough that was the first and last time I've seen a water level,it was worth learning though.
1700% increase on a glass of water would not make 1700 glasses of water, it would make 17 extra glasses of water. For example 100% increase on glass of water would mean you doubled the original amount and 200% means you tripled the original amount. So 1700%= 17 times of anything in question.🤝
![วันเกิดเธอ (TO YOU) - PHUWIN [ OFFICIAL MV ]](http://i.ytimg.com/vi/_ROx1Bj3T0Y/mqdefault.jpg)
Water fascinates and scares me. Hydroengineering, the abyss, the weather, science, tsunamis. The list is endless. If it wasn't for three simple atoms we would not be here
Great content SB
How could you put a thumbs down to this information? These are universal truths that have been developed tested and understood by our great ancestors. Truths that have enabled the civilizations we enjoy today. Truths that have eased our suffering considerably. Thankyou!
Skill builder my arse that was fantastic and fascinating, one of the most informative run through water history and plumbing iv ever seen. The knowledge you guy's have needs to be passed along. Keep it up ...
Absolutely lovin Roger's latest series of educational films. If only I'd had someone like that when I was at school. Keep up the good work sir, you're doing a marvelous job.
You did. It was your physics teacher.
If you believe the earth is flat... there is no helping you lol I'm dying
Oh Roger! Another absolute belter my friend. Especially loved the bits about Caesar’s piss and the American desecration of the English language. But all joking aside, there was an amazing amount of interesting information in there; even stuff I didn’t learn when doing my chemistry degree many years ago! Loved it. Please keep ‘em coming 👍
Thank you, that was one of the best TH-cam videos I have ever watched. I did know quite a few bits in there, but there was also a lot of things I had never thought of, or never knew.
My inner OCD really wants to put that "2" in the right place.
Atmosheric pressure has moved it 👍
Yeah! Agreed, however I learn so much from Roger I couldn't possibly comment. Also love the plugs for the U.S. :---P. Thanks Skillbuilder!!!
I love this guy! He should have his own t.v show, a very intelligent guy. Keep it up roger . 👍👍
I’m loving these kinds of videos from Skill Builder, you’re a great host Roger, very entertaining.
How about a video about locks/security? The different kinds of locks available, how secure they really are etc.
Hear, hear. That would be very interesting. Great work, Roger.
Great idea!
Locks? Check out the lockpickinglawyer channel to see what a secure lock looks like. Basically there’s no such thing!
Roger..... you're the JV-T of plumbers for explaining complicated matters in a simple way. Cheers.
I've been a a bit critical of your channel before. But I must say recently the content has been superb. Keep it up!
Critical? surely not! Don't worry mate be as critical as you like but keep watching.
@@SkillBuilder I think he was probably a Peter Warder oojamy flip type...
Mr Bisby you classes are legendary. I can’t wait for the next lesson. Keep up the good work, the editing is spot on loved it 👍
Grate video roger , I’m a young tradesman and yours and Robins videos are fantastic you guys are masters !
Thanks Chris!!!
Good morning Roger,
Could you cover the subject of exterior painting ie breathable paint v ordinary exterior paint and how it protects various substrates and can possible cause damp and failure to these substrates.
Great channel by the way.
Roger, thank you for an excellent and most informative video.
Even having been round the block for a while.. 76 here... I learned a few things.
Was hoping you would mention the useful pressure cooler... A handy gizmo if there ever was one.
KEEP UP the good work and thanks again.
Thanks - this is an outstanding presentation, a real tour de force covering so many aspects of this amazing substance, many of the properties of which are still being investigated.
I live part time in Scotland's highest village. The weather is severe. Learning the hard way, I switch off the Toby in the street, drain my tank, leave my house stop cock and all taps open in winter when I'm not there. Still I come back, fill up my tank and there is a little pipe that has burst under my bath. I know now that is because the pipe is going ever so slightly upwards, water is trapped and bursts the pipe which is not a biggie, better than having left water in the tank and flooding the whole house for weeks.
Never mind, the hotel next to me had three burst pipes this winter while their heating was ON!
Good to find out about hard and soft water, airlocks and expansion tanks etc. Vey informative for me as a layman. Presented with good old English humour.
Lockdown has effected us all differently, it would appear Roger spent his thinking about historic recycled piss.
i know what you mean thought it could be dinosaur piss as well never mind ceasers
Dead XD
Pmsl
nice to see the water level ,been using clear pipe water level for years to transfer levels on extensions even new build if slab is out ,great video again Roger
this was great, loved it !
Plumbing can be quite complicated. I’m not a trained plumber but trained on pneumatics and Diesel engines, similar stuff. I switched over to building about 18yrs ago and after working on plumbing I’ve concluded that you need to be on the ball, cause it either won’t work or there will be catastrophic consequences.
Sometimes us builders need to just get on with stuff and employing a trained plumber to crack on just isn’t an option. I’ve had no choice but to learn and get on with it.
I’ve got a Boilermate3 boiler in my house and was insured with British Gas; they didn’t know how it worked; I fixed it myself in the end.
I’m currently working in a 4 storey Victorian house with 6 bathrooms, 100yrs of pipe mods and we sussed it out removed all the lead and improved the water pressure.
I think sometimes us builders deserve a little bit of credit. There is an assumption that we’re a bit thick.
Training is always a good idea though.
Well said!
@@jimichip cheers James.
Very entertaining. However, one mistake: In 'the continent' (eg: France) expanding water in hot water tanks is Not allowed to travel back down the cold feed. The excess water is either vented to the drain (via a 32mm waste pipe) or to an expansion vessel as you described. Every tank has to be fitted with a 'groupe de sécurité' which incorporates a pressure release valve (to a drain), a non-return valve and a tap.
Enjoyable video, though!
Loving these new videos of yours Roger!
Love this guy, both a great teacher and a great craftsman. Pretty cool.
Roger you are simply brilliant!
Usual brilliance. Thanks Roger. Peace brother.
Fantastic video.
I already loved Roger and his teaching skills, but the snidey little dig at 'Flat Earthers' just made me love him even more. 😆
Just brilliant. Best vid yet. Loved that.
Probably will never do any plumbing but this video was so great i watched it all. Thanks so much.
Thanks Roger, great video. Having moved to a house which is on a private water supply earlier this year I must admit my water/plumbing knowledge had to get up to speed fast! This has been a really helpful addition. Cheers!
I could watch Roger's videos all day long - the guy has charisma
Great video Roger! Educated me and gave me a good chuckle too. Please do a video on the different types of water softener please. Very very hard water here and I think we're going to have to give in and have a salt softener as its ruining taps, etc.
Super entertaining and informative! Thank you so much!
I'm loving rogers enthusiasm for water ,,it really rubs off on me ,,
Good informative video
An excellent teaching video and very enjoyable, so many thanks.
I don't understand the negative thumbs down on this video, the information provided for FREE here is amazing. Very informative and engaging. I can't believe you cockney sparrows only have 260k subbies!!!
Don't worry about the thumbs down they are from flat earthers and people that hate Roger. Probably in equal proportion.
Wow, that was interesting!
I wasn't expecting that
Me neither and I made it
Brilliant. Thanks Roger. You should be on mainstream TV, they would get great audiences.
Thanks Roger: really entertaining video. Could I add something about the energy required to raise the temperature of water.
You need 4200J to raise the temperature of one kilogram of water by one degree Celsius. So, a one litre kettle (1kg) filled with water at fifteen degrees needs 85x4200 joules to boil it. That would be 357000J. Bear with me.
If, as some people do, you always fill up the kettle when all you need is 360ml for a mug of coffee then you have paid for about three times the energy required. The remaining 2/3 cools and next time you switch on, you have to heat it all up again under the same rules.
This is what made immersion heaters in cylinders so inefficient even when the vessel seemed to be well lagged. I wouldn’t want this system now considering the cost of electricity.
Another video could go into more detail about the anomalous expansion of water or change of state and latent heat. Maybe about how drinking water needs to be purified physically, biologically and chemically.
Just suggestions. You are good in front of a white board. Keep it up!
Thanks John
I remember all the joules stuff from college but never really used it much. I will look at your suggestions, it is hard to find the comedy in this stuff though.
I've recently found the skill builder youtube channel and and well inpressed! - much better than watching some of the crap on tv these days!!
I can't fault you and Clevit. Glad I subbed to you two.
Great video .........Cheers
@skillbuilder for all those who believe that the earth is flat, theres no helping you. Brilliant!!
You should have been a collage teacher back in the 70's, You just gave me a rerun of everything ive known for 50 years. I hope they still teach it
I was a college teacher for a very short while. I did the certificates and learned a lot but the money is crap
Jesus Christ! Mr. Roger you should be The teacher with such a good technic of giving information to people. I just wanted to watch for a few minutes before work and here I am - writing comment after watching full video.
Great content, Roger!
Don't let it make you late.
4:08 you've got my full undivided attention. Great vid Roger as always.
Brilliant video Roger!Very educational,practical and entertaining!You're a great teacher!😃👍
Many thanks
Roger, your an absolute genius mate
Thanks Norman but I am very far from being a genius, if only....
Just brilliant. Entertaining and, yes, informative. Water war coming to Ethiopia may be because of the Grand Renacsne Dam project......wonder if they have thought about water expansion😄. More please Roger, great stuff.
Love the content Roger 👊🏻
It made me feel I CAN understand the basics and the story of water is so interesting and important.
Well done Roger as you have created valuable in plumbing and general science which I enjoyed to learn more about it and I'm sure more people can learn about great things in PLUMBING. I hope to see more other videos from you.
Very good Rodger Well done good podcast a lot to take in across the board ... Plumb Bobs (plumbers to you and me) My brother is one god bless him.. A story I remember on a builders site and looked inside a tank cupboard and you thought the younger plumber had picked up loads of scrap copper pipes and just threw them in and where they landed that was the finished article (it was not a pretty site).. Took the Young Plumb Bob over to another house plumbed in by an older Plumber and opened the Tank Cupboard door (You could swear you could hear heavenly music when you opened the tank cupboard door :) ) .....When you looked inside the tank cupboard it looked like one of them Brass Tuba upside down (Tuba Brass Instruments) every pipe was in the right place and all clipped ..A piece of artwork for sure ... This is what we want or near as the younger plumber was informed so stop rushing around and take your time he was instructed ...Sad to say the younger Plumber did not take the advice ..The Younger Plumb Bob had a new mini van with a brand new roof rack. Nearly every night the Young Plumb Bob put his foot to the floor (boy racer) and gunned it up the street...On the Friday the older Plumbers tied his roof rack to the scaffold and watched him roar up the street ..Until his roof rack got to the end of the rope and catapulted off his car.
I believe in the US you are allowed to let it expand into the cold water line. However in many city water settings we need pressure reducing valves to knock down the pressure. In those cases my understanding is it's a closed system and you want an expansion tank into the hot water tank's cold line.
the best video on water i have seen THANK YOU
In a hard water area a water softener prvents limescale in pipes, boilers & cylinders.
Many thanks Roger for great lecture. Can you do a bit more on airlocks some time. They do seem to defy common sense. A real airlock doesn't normally have a beermat over the end of the pipe. So I assume it's surface tension that holds the water together. Therefore the diameter of the pipe is important. Could you do a demo then for a couple of different dia pipes, say 15mm and another different size, as to what height of water they will support. It's majic! Thanks in anticipation. Also a bit of education to avoid airlocks - always open the valve furthest from the supply first and then work back towards the supply. Thanks again.
Brilliant video thank you
Brilliant. Thanks.
Excellent Roger! Super episode. Stay well chap ....
yea, Rodger, I have a question which have already addressed...
the earth is 70-75% water that we need to survive. Why is man allowed to control it and thus kill thousands and perhaps millions of lives for monetary or selfish gains? Idk if you could broach this subject, but your skill at teaching could possibly open others ti the reality you've already addressed. God Bless You and keep on teacing
Oh my god! I’m cracking up! “Everything falls on Wales.” “Julius Caesar’s urine sample.” Hilarious!
That was fantastic. Thanks for doing/posting! 👍😀
"if you believe the earth is flat, there's no helping you" Well said mate
Was I the only one watching waiting for that beer mat to fall from the glass of water, mind you, the vid was editted wasn't it.
On the subject of heating why don't you do a breakdown of the different types of heating boilers, oil and gas, vented and unvented.
I love your dry wit on these vids, I think that's what makes them so "I just can't put the fackin phone down till I've watched all of it"
I bet that glass of "water" was actually vodka, you kept taking a swig. Tap water in this country is jank.
Keep em coming Rog 😄😄😄👍👍👍
Tiny Tony
I was also waiting for that beer mat to drop off. Do you really imagine that if it happened we would have edited it out? We pray for stuff like that.
@@SkillBuilder 😂😂😂😂
I could listen to Roger talk all day long. He needs his own channel
"if you have enough lead, that probably explains alot about me" HAHA, Roger you crack me up. Loving the videos, really enjoying the learning, most of all really enjoy watching your no nonsense approach to everything.
Quality informative Vid, Cheers.
Very good, love the video!
Plumbum is Latin for "lead" - which is where the term "plumbing/plumber" etc comes from.
Yes
@@SkillBuilder I believe that most water companies in the UK add phosphoric acid to the water, this causes a coating to build up on the inside of the pipes and prevents the lead from being desolved. (Fun fact: if the phosphoric acid dosing stopped the coating would desolve and then the lead would be desolved at around twice the original rate!)
Fun fact.
Money in Britain was also measured by weight, £1 of silver was 1lb in weight.
The were 240 old pence in £1 because 240 silver pennies weighted 1lb
Interesting Roger , we live in a hard water area but I remember when we were kids one of my mates had a Rainwater tank outside the old kitchen window with a third tap inside over the kitchen sink for using the soft water for what ever reason , must’ve been an old idea that every house harvested its own rain water as all the houses along that street were the same
🙌🏻
That's very smart to have natural soft water from the sky 👍
Very interesting Roger 🧱👍🏼
Great video. Can you do one sometime on surface tension and how the diameter of the pipe affects the chance of airlock (assume the smaller the diameter the more likely the airlock because of the relative increased effect of surface tension in a smaller diameter pipe). You can repeat the glass test to do that but use a piece of clear tubing and no mat on the lower end. See what column heights different diameters can support. The maths for surface tension is I guess fiendish but I'm guessing you can give us an alternative practical explanation. Thanks again.
Quality, well enjoyable
Thank you
Excellent video Roger, thank you 👍
I used to have an old coal powered Parkray, first winter had a loft full of superheated steam and all the pipes rattling - sounded like a battlefield, terrifying 😱😱.
Really enjoyed the video & learnt a lot.
Regards
Tim
I have really enjoyed this video, absolutely excellent. Thanks for your time.
I’m a sparky and always thought that plumbers were inferior to us . Little do I know😂 great video mate.
That seems to be a common attitude among sparkies. I think some of them think they invented electricity.
He's thinking of plasterers.
Great knowledge and a topic covered with great aplomb. Thx
when I started doing the plumbimg, city and guilds, back in 1972 at the Brixton school of building, I learnt the -
(, before that It was ImperiaL weights and measures, but I only found out this year, that a " pound sterling" = 240 pennys, = 1 lb ( pound ) in weight, so you would not have to cart a gallon of water around
20 gallons of water for a pint of beer is nothing! It takes 660 gallons to make a burger... We'll thats what google says, probably American stats! :)) though it is backed up by university research...
Stick to the beer and crisps!
Great video Roger! I'm doing some plumbing and heating renovation and moving pipes etc. this is great content to help us understand the "Why" bit...
Really enjoy watching your videos
Very informative Roger... Thank You 👍
I was feeling like I was back at school, and that was a long long time ago lol, great lesson very educational and informative 😁
great teacher ,fun informative and entertaining
In a cockney accent: “ a pint of water weighs a pound and a quarter”
Roger!! "your the man" Another great lesson keep doing it fella!
This is an exact value in the UK since a UK pint is 20 fluid ounces (16 ounces to the pound) but not in the USA where their pint is not the same as a UK pint. just thought I would clarify it for non UK viewers.
Awesome training you'll helping big time
Great info 👍
As always, an excellent, educational and entertaining video. An absolutely natural presenter!
Totally agree with Roger about Americans mangling the English language. Sadly the British press and people are also mangling it. Using phrases like from the get go instead of from the start or beginning, fall instead of autumn ( you fall asleep or fall over). I really dislike it.
Yanks don't have a sense of humour, they're too busy being paranoid. Brilliant video, keep it up
Oh my favourite subject. At the moment it is push-back that gets my goat. The word 'resist' has gone. In general if the Americans change a word it is with two words. Pavement becomes side walk.
I would disagree about the humour thing. Lots of Americans are very funny but they don't get the laconic irony of the British. The humour is just different and, like anyone, they are quick to jump when attacked.
Great content as usual Roger. Just one thing to correct at atmospheric pressure water expands 1600 times at 100 degrees Celsius not 1700 as you mentioned. Otherwise excellent.
Very informative video we all take water for granted
You just reminded me of my first year carpentry and joinery,we had to transfer datums using a water level,funnily enough that was the first and last time I've seen a water level,it was worth learning though.
Water level video. th-cam.com/video/29lzibkKeAI/w-d-xo.html
Loving your work Roger many thanks for sharing your 40 ish years
1700% increase on a glass of water would not make 1700 glasses of water, it would make 17 extra glasses of water. For example 100% increase on glass of water would mean you doubled the original amount and 200% means you tripled the original amount. So 1700%= 17 times of anything in question.🤝
Good lessons. I learned a few things. Thanks.
Excellent presentation