How to Flush a tankless water heater. 1 minute tutorial.
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- Flushing a tankless water heater and how to do it. Remember, this should be done yearly.
#plumbing #tanklesswaterheater #flush #maintenance #plumber #fyp #tradesman #howto #diy #tutorial
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Don't forget to clean the combustion air screen and inlet water screen! Those buggers get dirty
And the combustion condensate trap should be cleaned as well
The cold inlet screen too. There is a whole maintenance process I’ll do a video on soon. This was just the flushing.
😊
Also a good thing to note youre supposed to flush the opposite way the water typically circulates through the system
I'm a home owner and a landlord.. I do this to my water heaters every year.. I also use a pool sock for all the sentiment that comes out so it doesn't circulates back in..
A landlord that does Pm on his equipment. Now I’ve heard everything.
I like it 👍 good video as a licensed plumber in Oklahoma.
only thing I would do different, is not open the T&P valve ( unless I was prepared to replace it ) in my experience once you crack a older T&P valve open they’ll almost always seep .. 👍👍
I never touch a t&p unless absolutely necessary.
definitely made that mistake once
T&P valve?
@@agentalexcamp temperature and pressure relief valve … when on a (older unit) the rubber washer which is seated via spring tension becomes dry and will never seat 100% again .. thus causing a obnoxious drip
What about the in-line screen ? That needs to be removed and cleaned also def gonna be a call back
Why “def a call back?”
@yamaszlofmcdurkin I read the comment. Have yet to have that call back though 👍🏻
@@theplumbersplunger that extra trip charge eh?
Great demonstration. Is it the same with a Navien tankless?
Thank you. Yes, same process. You could also clean cold water inlet screen and the fresh air screen.
Great video what type of pump did you use? How many gallons per minute or hour
The pump comes with the Whitlam Flow-Aide System Descaler Kit. It’s a 500gph pump.
Thank you
I personally have a Navien sell this brand...
I have been very happy with it...
Can I ask... what brand do you typically install or sell to customers?
That is a real hacky install! 😮
Not my install lol. I agree though.
I would recommend detaching cold side first, then pushing a bunch of water through the hot side, getting all of the unwanted solution out.
Thanks for the video! Question. Once I start my submersible pump the flushing starts, but after about 30 secs, water with the descaler solution stops shooting out back into the bucket. Any idea why this would happen? Tia
I'll have to do some maintenance at my in-laws' place. Theirs is a few years old, so I'll be curious what the water will look like. Maybe this is a dumb question, but can you use an air compressor to flush it, instead of pumping the water out? Just because I already have an air compressor. 😅
Homeowner never get that done. Wait till it breaks 😂
Exactly why I don't recommend tankless unless that is the only option. After considering higher installation cost and maintenance costs, I don't see much advantage over storage water heater other than space saving. It would make sense gas prices were much higher than it is right now, but where I live, there isn't that much of savings. My gas bill is only around $40 during non heating season.
The caps! The sign of a pro.
👍🏻👍🏻
Do you also use gallon of water with vinegar
Don't forget to do visual inspection opening the door and clean it
What does doing that to the T&P valve at the end do?? When you were saying run some water through the lines when you’re done.
I was running water through the tankless by opening it. It’s safer to just open a faucet on hot though. Old T&P valves might leak.
Hes removing the remaining solution out of the system as a homeowner would not want to bathe in it
Open the cold after and keep the hot closed to flush out any remaining solution. Opening the hot side will surely send solution to fixtures in house. It’s very acidic so fill a couple of buckets to flush it out before opening the hot side.
If you have a water softener do you still recommend this?
I never open up the ports until i rinse the lines and heat exchanger by taking water and running it just like i would white vinegar or haymaker
leave that hot valve closed when you flush the system with the t&p
I wanna know who installed that thing to begin with
What does it look like when the system hasn't been flushed in years?
Probably dark green water
I have seen the water be black with large calcium/scale flakes.
Can you flush from just one side? The valve to the cold side isn't accessible. (The plumber that installed it helped flip the house and didn't care about what he was doing).
What about the filter? When do you pull it out and clean before or after the flush
How old is that tankless? I been flushing them for a while and never seen one that dirty. Is there a softener install? Help me understand 😅
2 years old 😅 no water softener
@@theplumbersplunger definitely need one 😂😂😂
@@theredvillage5773 for sure lol
Is that galvanize steel?
A plug connect for the water heater?
Get you a 5 gallon bucket, a $75 dollar pump off of Amazon, 3 gallons of vinegar & let it run 2-4 hours. Then check the screen to make sure that’s clear as well. Then have a second bucket with clean water to flush out the vinegar for 1 min. Repeat every 12 months.
do you have a recommendation on a pump?
When the hose is in the water while the pump is going it stop it from coming out properly and fully empty. I used a siphon to clean my fist tanks. If I leave the hose that is filling under the water it’ll stop filling for some reason. Idk the physics but jus wanna make sure that ain’t happening to your tanks and it still has water or one.
What are you flushing if its a tankless water heater?
What’s the reason for this for limescale or something and how come the prv is on the hot in Britain ours goes on the cold as hot expands it goes back into cold and through blow off
How about also leaving the solution in and letting it heat up. It works in coffee machines.
I do not turn the gas off. Cleans the heat exchanger better.
How is that?
navien has a specific way. Warranty gets voided quickly if not doing it correctly
Depends on who you talk to. Had a heat exchanger I replaced a few weeks ago on a 7 year old Navien. No questions asked they swapped it out. Tankless was flushed yearly by the homeowner and that was good enough for them
What type of pump is used in this video
What are you going to flush if there is no tank?
How often do I need to do that?
Once a year typically
You always want to remove the filter. Put it in the bucket so it can be soaking when you flush the tank with water heater. I do it for about forty five minutes.
Not gonna lie....I jumped when you almost pulled that pump hose off without shutting the valve again
😅
What type of pump us that?
How does it do with whole house reverse osmosis from well at 66 TDS?
Of all the tankless water heaters I have installed, no one has ever called me back to do the annual flush. So sad.
You are supposed to reach out to them
@@mx-lj4qq we have called them but they don't want to do the service. So sad 😭
Easy to do. Maybe they are doing it themselves
@@Sharper714 maybe, but I doubt it
Maybe they are just DIY…like the people watching this video…why would a service guy watch this? Should already know how its done…so sad
%90 solid up till the end
What happens if you don’t turn the gas off on the flush?
German plumbes are laughing 😂
Why?
@@theplumbersplunger First off I'm not German, im Irish. Just been there for 10 years working. The method of installation and the materials used are here the issue.
Will this help if the error message 13 pops up?
No filter?
If it's tankless... What's there to flush
How can I flush mine if I don't have those fancy expensive valves?
totally easy to do yourself.
That when it the gas water heater and you using underground water
What?
Meanwhile I’m enjoying my traditional gas water heater and doing nothing 🤣
I'm running into a lot of situations they need flush twice a year
What are you flushing if it's tankless?? Maybe it's a wash out?? Idk😂
Copper heater exchanger which scale latches onto
Heat exchanger
Wow cowboy much 😂😂
?
hmm..I don't agree with your last part where you flush out the vinegar out of the system..you show by forcing safety relief valve spring handle, it is quite common plumbers treating that safety relief like a regular valve, if it sat there for a while and play with valve it may start leaking, thus the exact way you were flushing the heat exchanger by closing both valves (cold and hot), but this time you open cold ,LEAVE hose attached to the hot outlet side with valve to end user off but the drain opened with hose into drain..easy-peasy, without disturbing safety relief valve..that's the plumba'way..no offense 😮
Sounds like a good opportunity to eat your lunch lol
They still haven't automated this process?
No 😅
Why are American heaters so complicated? Geez
What no flow test
If you have one of these heaters, get a normal water heater.
True! greedy plumbers want to sell the expensive crap, and all the little upgrades. Basically a RIPOFF all the way around.
The seller should come flush it for you for life since it cost twice as much to use as a regular hot water heater
This guys forgot all kinds of steps
Tankless, biggest POS on the market, super expensive per BTU, but they will not tell you that, just rip you off on the sale.
I installed one in my house. Haven’t noticed an increase in my gas bill yet.
@@theplumbersplunger You must be single with no kids,,,, oh, and do not forget you have to upgrade the gas system to be able to handle the 200k btu new load.... and the water system if it is under 3/8" houselines... yeah, a real advantage, you just keep LYING about the real costs and keep selling that expensive crap to victims.
Everything is wrong on that tankless installation,not up to code
Yeah, because the homeowner’s gonna go through all that bullshit
Do not buy these.
Why?
Why?