Secrets Inside Your Well Pump. How Does A Deep Well Pump Work? FarmCraft101
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- เผยแพร่เมื่อ 8 ก.พ. 2018
- My well pump was replaced recently, so I do a complete teardown and diagnosis on the old pump, including going through how it works. There is one mystery component that I'm not sure about. Is it a temperature sensor? It might be a lightning arrester. Do you know? Leave a comment.
ANSWER: It's a 'biac start switch' which supplies power to the start winding while the motor is starting up, then power is cut when it gets to rated speed. apps.franklin-electric.com/am/...
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Thank you for taking both the cost hit of the new submersible pump + the time to disassemble and explain the components of a submersible pump. This has value for many families. Well done.
Christianity is pagan.✔️
Statues in the church indicate that Christianity is pagan .
Jesus is just a human being and messenger .
Human being like me and you .
Jesus did not know the unseen,
Jesus did not know the Hour,
Jesus could not do anything on his own,👈
Jesus was sent by God,
Jesus was praying to God
Jesus is not God or the son of God
Jesus is a man, mortal .
If No mary , no Jesus .
The incarnation is a pagan and polytheistic idea .
Islam is the true religion, Islam is the religion of monotheism ❤️
Christianity is a pagan religion.
I invite you to Islam, and to pray to the One, True, Living God.
Knowledge is Power.
You should do a Saturday morning TV show. I'd watch it for sure!
The knowledge and work it took to invent and produce these mechanical gadgets amaze me.
Christianity is pagan.✔️
Statues in the church indicate that Christianity is pagan .
Jesus is just a human being and messenger .
Human being like me and you .
Jesus did not know the unseen,
Jesus did not know the Hour,
Jesus could not do anything on his own,👈
Jesus was sent by God,
Jesus was praying to God
Jesus is not God or the son of God
Jesus is a man, mortal .
If No mary , no Jesus .
The incarnation is a pagan and polytheistic idea
Islam is the true religion, Islam is the religion of monotheism ❤️
Christianity is a pagan religion.
I invite you to Islam, and to pray to the One, True, Living God.
I run a well pump farm. We usually get them in as Aquarium or more often fountain pumps and then feed them until they are self priming and are ready to move to the deep well pump pool. Most often we'll sell them off at around 120 volts, but some we let go up to 240.
Your pump appears to have suffered from pulmonary embolism, which is brought on by filling your pool several times in a row, or throwing a washing machine party. I suggest only feeding your new pump clean watts and avoid any future water parties or late night bucket filling adventures. Pumps work best between 6am and after sunset right before dusk unless you can sneak up on them during noon when they are napping.
The part you were inquiring about is a simple proximity sensor. It's looking for other pumps in the general area. Most people think of the well pump as a solitary creature, but they have been known to pair up.
Wow, that was great. Loved the mystery ejecting sequence. Everything I take apart, ever since I was 10 years old taught me to expect something under tension to come flying out. It was satisfying to see that rule still holds and I'm well over 60. Anyway, I'll be paying someone to pull my submersible, though I do damn well want to do it myself. "Damn well" ... ha ha get it?
Came across your video looking up info on well pumps.
Good to know I'm not the only one who saves things you somehow know you'll use later down the line. 👍🏼
Very interesting and I must say you have a special attitude of which I wish I had. Thanks for the show.
great video ! I always wondered what was inside one of these. I've gone through 4 pumps in 30 years living in the Sierra foothills. Enjoy
Very well done and instructive video! I just change my old (220 Volts-3 phase and 3.5hp) deep well pump by a new one in Argentina. The old one it lasts about 10 years of use for the irrigation. I think its burned because some high voltage peak. Thanks to your video, I learned what's inside and how it works. Thanks!
Oh dear. Mine has also been in since about 1972 on the old property i have. So i guess i can’t repair myself. Thank you. Saved me from wasting time.
Nice, I’ve been wondering how one of these works and seeing the insides is a plus!!
My dad had a similar attitude to yours. Well, so far as finding parts and materials to save. Although he was a city boy, he was the first generation city hoy. My granddad grew up in the country and probably still had the understanding broken things weren’t junk, especially living in the country in the early 1900’s. But my dad wasn’t as interested in how things worked. That’s me...also with the salvage gene.
Nice to see the curiosity, tried to show the kid but really no interest in just learning how things work. To me that is the most fun also. Being on city water we can only experience the deep well pump teardown from guys like you that take the time to film. Thank you sincerely. Lawson di Ransom Canyon
The most important thing in child education is teaching them to be curious. Once that is achieved, they'll be self-sufficient for the rest of their lives.
You did a good job with your video - it got to the facts without being boring.
I had to replace a pump motor that was a 2012 unit. The well guys said that could be part of the problem, and if I wanted to save them coming back in the foreseeable future that I should just replace it while they were there. They had one on the truck, a little more horse power, and went with new install.
You always wonder about such things, but you have my decision easier to bare. Thanks. Love the fact that you breezed through all the tedious part of screw removal and other time consumers. Good job.
hughbo52 you where unlucky and got the faulty one so you should send it back you got a cheap or a wrong for your use pump or they did not install it corectly thoose last at least 40-50 years
oh cool bro thanks for this video!!! i got 2 well pumps from the scrap yard for cheap and i wanted to take one apart to see whats inside. found your video and saved me all the work!!!
Nice! I've always wondered how they worked, I'm dreading the when the time comes to replace mine.
It's probably a triac. When power is applied the bi-metallic strip is in contact so the triac energizes the start winding. As the motor spins up it generates heat which in turn causes the strip to bend and opens the switch. This bypasses the start winding and the motor continues to run on the main winding alone.
So it's like a start capacitor, without the stored energy?
I was also thinking a capacitor
I don't think that's the case, usually these pump systems have a control box at the surface level in the pump house with a potential relay and a start capacitor. I believe the component in question is a thermal overload with a bimetallic switch to cut off power to the motor when it overheats. I suspect the reason he got the OL measurement with an ohmmeter is because this thermal protector had worn out and was not making the connection to the motor windings.
awesome, thanks for taking the time and showing the steps the pump is taking to get water where I needed it!!!!!
Date code on the Franklin motor was April 2005. The pump was an F&W, probably similar vintage. So it lasted 13 years.
I love that your first reaktion when a thing shoot out of the motor, was to look into where it just shot a thing out from :D
I was waiting for another one to shoot out and hit him in the face when he bent over to look.
Imagine working for a laser company. My eyes, they burns.
@@kingjames4886 same lol
You have to be a fellow hoarder as I am to. Always looking for a use for old parts. Nice video. Thumbs up.
Man, I thought I repurposed stuff...you are awesome!
Interesting video, Ive always wondered about the inner workings of a pump like that.
We've got very corrosive salty water on our farm, and we've had to change out a few of those submersible pumps over the years. The pump side was still perfectly fine, its mostly plastic impeller parts, we've learned to just buy a replacement motor and couple it to the existing pump ellement.
Christianity is pagan.✔️
Statues in the church indicate that Christianity is pagan .
Jesus is just a human being and messenger .
Human being like me and you .
Jesus did not know the unseen,
Jesus did not know the Hour,
Jesus could not do anything on his own,👈
Jesus was sent by God,
Jesus was praying to God
Jesus is not God or the son of God
Jesus is a man, mortal .
If No mary , no Jesus .
The incarnation is a pagan and polytheistic idea .
Islam is the true religion, Islam is the religion of monotheism ❤️
Christianity is a pagan religion.
I invite you to Islam, and to pray to the One, True, Living God.
You had lots of service. Be thankful.
I work on water Wells it's awesome you took it apart and were interested pretty cool
Many thanks for this video,super! Good music at the end !Regards,Ben.
Wow, yours lasted a long time! Great video, now I know what to expect when mine fails.
spelunkerd getting thing out is bigger deal then bye new. 100-300 meter tubes. all that heavy metal tubes and pump at the end... Lift up, lock in, unscrew, attach lifting lift up and do it 50 times
spelunkerd if you buy the right underwater pump and install it correctly it can easilly last 50 years
3:50 That's a Thermal Overload switch. It cuts power to the motor if the Temperature gets to high preventing damage to the motor.
Overheating in well pumps is usually caused by either a bad bearing (starting to seize up) or debris jamming the pump impeller.
Id say unlikely. More likely what Esven stated - some kind of start-relay ding. It is a single phase AC motor. There have to be a start winding with either a run cap or a start relay.
Sorry Guy's sixta is right
Motor overheating is controlled by a thermic relay in the power box
Interesting autopsy!!! Thanks.
I believe switch is a thermal overload protection. The start switch is capacitor and separate magic timer in a box . Just so happens taking my pump out today ( only 8 yrs old) . Sesrching too purchace pump and found your interresting video.i save parts too lol. When your a hobby machinist one becomes a collector to put it gently. Lol
I would love to see a side-by-side tear-down of a new pump vs that old pump!
It would be exactly the same
I sell pedrollo and DAB pumps they all have the same dimensions and for a 100 bucks extra you can have them with a Franklin motor
This pump was not broken all he had to do was buy a new motor
I just learn something new from ur disassembly
Interesting. Used to have troubles with one of these pumps. After just 7 months of use it was causing the terminal switch from my house to cut the power (don't know the correct terminology in English). Everytime it was plugged, instantly power was cut off. An electrician installed it without the terminal protection, directly to my house service connection and worked.
Had to buy a new one, never knew why it did that
At least you look on the bright side,its ain't much but least you got something from it.Also it was informative and interesting so thats good
and don't forget to mention; almost half million views
Nice Homart fan under the workbench!
I’ve had stuff like this I’ve fixed but still didn’t use them again. Depending on the difficulty of getting to the part new just makes more sense. I took a pump apart that was drawing to much current and it was just a bearing. The problem is even if I fix it the o-rings would need to be replaced exactly or they would leak. The down times not worth the savings. It can be used somewhere less critical than my water supply. I do what you did, scavenge parts. Lots of stainless nuts and bolts and tid bits for future projects.
Thanks for the video..
I faced problem in my submersible pump.(1hp)
I checked resistance in motor found ok.
Further checked found pump electric panel card fault.
So replaced the card now works fine..
Excelente conocimiento, pensé en que la repararías, pero no me voy con mal sabor de boca, tengo algo mas en mi cabeza gracias men
It is fun and educational open up a fail pump. Thank you!
A mans favorite line, I can use it for something! LOL
You should see my yard
The packrat's motto LOL.
My mom is one of those too...I have two antique wardrobes I appreciate but less than possibly appropriate for each.
The rubber and plastic seals cause most of the failures with the pumps. Sand in the bottom of the well can scour the impeller rendering it useless. Even with the long-term wear issues we replaced windmills with submersibles and have not looked back. The maintenance on the submersible electric is nothing like the replacing of leathers and the annual maintenance on older windmills. Plus, the old Aeromotor windmills were worth a good deal of money, people wanted them for their aesthetics which offset the cost of the new elelctric pumps.
Great detective work, lot of engineering want to that pump.
Well done, quite interesting.
i work for a well water supply and water treatment system wholesale company i deliver Franklin pumps to well drillers daily and i can say they hold up pretty good too.
Great video / disection. Thanks
When was this pump design invented? Amazing technology! Great lesson, thank you.
The knowledge and work it took to invent and produce these mechanical gadgets amaze me.
Knowledge always has value. Be it good, bad, or indifferent. Its use will become apparent.
thank you, much better info than pump diagrams from the pump suppliers and makers.
The hose clamps are there to connect the pump assembly to a plastic hose. The hose also carries the weight of the pump and is subject to its starting torque. Many submersible pumps are hung on 1" galvanized pipe. If your pump has been in there for forty years, hanging on plastic pipe I would worry about the plastic. Ask the people who put you new pump in.
willy kanos In my area at least, no pump is on galvanized unless someone does it themselves. Galvanized makes is extremely heavy and would be a nightmare pulling. Most have flexible 100 psi plastic clamp pipe. The pipe isn't supposed to be what holds the weight either. There is supposed to be a rope that ties to the pump that ties up top that holds its weight.
I used "well strength" (thick walled) plastic pipe and hung the pump from it. (I think there are 3 grades of rolled plastic pipe. Well pipe being the strongest.) Nylon rope is slightly longer than the pipe and is only there in case the pipe breaks. My pump has been down there since 1981. My well is 96' deep. I think somewhere around 200 or 300 feet they start using steel pipe. I know of one household well in Bend, OR that is over 700 feet and is steel all the way down. He has had to call in professionals to pull the pump twice. Several thousand dollars every time.
(Wandered around TH-cam, found out my information on well piping is somewhat inaccurate. Though I disagree with the presenter's opinion of poly pipe he shows all the options: th-cam.com/video/WFRwpQWoZrk/w-d-xo.html )
Last month I pulled a well with the seamless poly pipe (first time I've seen it here) that was set at 500'. Plastic is better than galvanized for long term, galvanized rusts plastic wont. Most of them around here use threaded pvc, schedule 40 (standard pvc wall thickness) down to 200' and schedule 80 if it's deeper than that
Oh btw, if it's been in there 40 yrs it doesn't matter what they used, it should be replaced with new stuff
willy kanos if it hangs o
In the water you did something wrong the pumps always must be on something stable
About the temeperature thing...
I think it's a Bi-Metal switch, connected to the Triac (Triacs are used to switch AC Power, MOSFET's can only switch DC). But i don't know why there are 3 Connection-Pins. Eventually this connections are Live, Neutral and the switched one, who is connectet to the Motor.
Great video...smart guy
Thank you for sharing
thank you for showing us. how a pump works.always thinking if motor went out. could you put above ground pump and suck thru old pump???? low cost. ???
my pump getting old and don't want to replace it..thanks for showing how it works.
Thanks for the video...I just replaced my well pump in my 450 foot deep well. 15 psi for every 33 feet of well depth makes my pump output pressure about 200 PSI
Unless you're pumping into an open tank you also add the pressure switch setting and pipe friction as well to end up about 250 psi :-)
Kenny Kemp of course!
excellent video. thanks.
Its an internal submersible pump thermal, if your panel that runs your pump may have landings for wires from the pump. If three phase power wires would be black, red, white, seals would be orange and red, thermals would be black and white. The seal and thermal wires would be smaller gauge wire. I'm guessing this is a single phase with no pump seals or thermal besides the internal one to the pump which would act like a hair dryer when tripped it will take time to cool and remake the path of electricity a closed circuit again . Just my thoughts with working with submersible sewage pumps. I'm guessing as well that the pumps turn off and on by a up stream pressure sensor if the sensor senses psi is below 60 psi the well pump turns on. Great channel keep up the good work.
I actually rebuild these forms living...well except mine are 250-2000gpm pumps. Kinda cool to see this lil baby pump
very informative...thanks
Nice video good explanation.
They tell you "Never mix electricity and water" as a kid, then you find out they've been stealing all the fun for themselves the whole time.
Nice work
I love the AVE style green mat.
Very important video dear
my wild guess on the FET thing that popped out is that it's not temperature, but a motor start. Once the motor is up to speed, it'll disengage the start winding.
I had a Deep well Put in in the late '90s and made the mistake of going cheap on the pump with a 'rebuilt' one @ 1/2 Price of New (rebuilt was $400). Total cost of the well was $1400. After SIX Months I started getting an Inline Filter i put in clogged with what looked like small particles of MUD and sent filter to the Locally owned company to examine. They said SILT that would eventually clear.. so I went with replacing the filters every Other DAY.
Finally after over Two WEEKS and my Plumbing starting to clog too... I took another clogged filter to another drilling Company to inspect. They (Two Man Company) told me it was PLASTIC (ABS?) . That the Impeller was breaking down. They came out.. replaced the pump (@ $800) with a Stainless Steel Impeller and NEVER had a problem since .
BOTH Companies were in business over FORTY Years but the First I used was Two 20-something BROTHERS.. (They took over from aging Grandfather... always arguing..very Unprofessional and NEVER Returned calls when I was asking for assistance. The second was The owner and his hired help ..very Professional and knowledgeable.
Saving Money NOW... MAY cost you MORE Later. I got what I paid for with the first!
i always wondered how a deep well pump worked - thank you!
my pumps been down in the hole for 40 years so I know the clocks ticking thanks for the tear down looks like an easy fix unless I change to surface top pump
TejasToolMan if you are not a handy man surface pumps need maintance
more handy then I wanted to be lol ;)
Surface pumps can only suck at best 30'.
Good Video .. thanks for sharing .. , I like the way you think .. !! Great minds think alike !
That switch is the mechanism that disconnects the start winding and energizes the running windings. The motor is supposed is filled with clean water with a bit of non hazardous anti-freeze so they don't freeze and burst open in a warehouse or building somewhere. The top "rubber part" is not a main seal and can be gone and still function. It is called a sand slinger. Helps to keep sand away from the top bearing. The swelling inside causing the rotor to be locked and not turn is most likely due to a power surge and swelled the windings. Seen it many times. I was hollering at the video saying the liquid end screws on. The liquid end was probably OK, though very few installers any more will just replace the motor only like we used to do 30 years ago. The liquid end will usually pump in excess of 100#'s in order to push water up the well and still create cut off pressure on the switch above ground. It takes 1500 degrees to turn the epoxy to sand and free the copper. Cost more to get a furnace to that temp than what it is worth unless you have a huge amount of motors.
Good info. Thanks, and thanks for watching.
Pump Doctor It's not hard to see why those pumps are so expensive.
Lol....I was going to say that you could've just replaced the motor to save some money had you not cut open the pump. The problem with that is we don't do it because franklin and the other various manufacturers will not warranty the motor unless we also buy the pump and controller, there are still some of us who know how to REALLY repair pumps. We just can't because of the red tape crap.
Thanks for this.
that thing popping out of it made my day. probably the contact cant handle the current draw of the motor so the mosfat is used to turn the motor on and off with the signal of the contact switch
probably, not sure why you'd need 3 external contacts for that though.
Although MOSFETs first appeared in 1948, there were no MOSFETs in 1972 with the reliability, current carrying capacity and voltage rating to be useful in a well pump application.
its AC motor, this is not mosfet, more likely triac if its meant to switch motor
I'd have called it a transistor... but w.e, probably all basically the same thing.
@@kingjames4886 Probably an off-the-shlef piece with multiple applications, some of which would have req'd more connections
One of the biggest issues with failed submersible pumps is the installation of a piece of crap like the one you disassembled. The motor is a Franklin Electric product ( no issue with their motors ). The wet end however ( pump ) is a dumpster. Proper sizing and overall system design greatly improves longevity of the pump and motor. Power quality, frequency of starts, motor cooling, motor controls and water quality all factor into the performance and reliability of any system.
As soon as I saw the composite discharge adapter I had my doubts. Hopefully a professional grade replacement was installed in its place.
cool teardown
Cool video!
very nice bro.
I believe the temp switch uses a mosfet as a switch. Use very small signal to control a larger voltage.
Can a 1kva stabilizer be used to bust the voltage for 0.75hp pump?
Amazing video
❤️❤️❤️❤️
Any chance you remember the rpm on that pump? Those backwards curved impellers require very high rpm to move their intended liquid or vapour.
I hope my well will give me 43 years of service. Great video
the well in the house I am in was installed in 1997, so 21 years so far and still going.I wouldn't be surprised if the well pump installed before that one was much older. The disconnect switch / fuse box located near the well pressure tank uses those round fuses, so you can guess how old that setup is.
Ken Michael .... 43? Grab the brass ring. Go for 45.
snoopdogie187 great! It is the bearings that fail first. Maybe a good idea to replace them preemptively and you have a longer lasting pump...
the pump could be seeing 100+ psi depending on the depth of your well system. that's why this design is required. the pressure required to push water that high is way more than a single impeller pump can provide. i just had another one fail today. we can't seem to get more than a few years out of these pumps for some reason.
Try not opening the fill valve completly. If you open the valve maybe a third it seems to increase the pump life.
I had what looks to be the same model of Franklin deep well pump go bad on me 5 years after installation in 1977, the electrical connector on the motor shorted out from water leaking in somehow.
ours lasted from 1992 to 2018 it was a good one replaced it not long ago and yes they do cost about 400 took 3 people to do the job of pulling it all out
What was the part number on the TO-220 mosfet looking thing? Could have just been a BT### series triac from the way it is wired. The bimetallic strip heats up, disconnects, and that disconnect only happens at a few miliamps, leaving the heavy duty beefy switching to the silicon. That way your heat sensor contacts will not wear out ever.
Edit: I was almost right, it was only for the start winding.
I am from Coimbatore, India and we manufacture millions of pumps every year. Every 5 years the pump goes bad and we need to call them to fix it. So the pump company charges us $350 ~ 400 in total for labor and new pump. But you get the refurbished pump for half of that price.
Fantastic . Great Explanation,
I think the TO-220 package might be a triac for switching AC current - like a mosfet but capable of switching AC
👍Subscribed. this is awesome stuff. I'm gonna have my own work garage too👍🙏THANK YOU for inspiring.
Thanks for the tutorial!!! I do have a question,if the pump is incased in a stainless steel cover,why is it rusted?
Maybe cheap stainless, or it was just minerals/iron in the water rusting?
That switch you were holding that popped out the inside looks like a Silicon Controlled Rectifier (SCR) they area high current/voltage switch. possibly hooked up to a temp switch and would turn off the motor if overheat.
How much was the replacement with labor...did u have to replace the pipe? Thanks!
I just did an identical set up. Our system is 3phsse 415v motor. I have to replace the impeller pump end (not the motor) every 12 months as it gets clogged with muddy silt from our old borehole and the flow to our storage tank dwindles. I also cut one open but could not quite grasp the magic of how the plastic discs worked!
Maybe consider raising pump ( reduce depth) a few yards , could be too close to the bottom .
Or install plastic 5inch liners the full depth , obviously slotted.
mine went out in May, 165 ft down it lasted 15 years. Got a 1hp replacement and that thing cost me $850 for just the pump and $300 to pull the well and put the new one back down.
Just for giggles, grew up on a hill, the well was 440 feet deep. That would mean on the order of 250 psi at the pump!
had one of those at the farm i worked at, 85 feet down, pulled it to change the pump cause the check valve failed. put in the new pump and added a check valve to the old one. two years later swapped out the newer pump cause the motor burned out.
Very interesting.
Is there way to check the pump before goes all together . I am On a well like to know when to change the pump . Hate to it just stop working . No water at all would be a big problem . lol
Interesting. Lots of stages. In an industrial application, that number of stages, would produce hundreds of psi differential pressure. This one works for a well though.