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Fixya com How to drain a gas hot water heater and an electric hot water heater

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  • Water Heaters Master
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Copy following links for draining and flushing gas and electric water heaters:
http://waterheatertimer.org/Water-heater-will-not-drain.html
space line
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html#flushelectric
Add a comment and describe what you are doing

Posted on May 11, 2013

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Posted on Jan 02, 2017

  • 104 Answers

SOURCE: how to drain hot water heater

look under camper at floor

Posted on Nov 11, 2008

  • 10865 Answers

SOURCE: Draining the Priemer Plus Gas Hot Water Heater

Begin by turning off the gas at the tank and at the valve near the tank. CAUTION: Do not proceed any further if you do not know how to relight the gas pilot!
2) Turn off the COLD water supply to the tank.
3) Attach a garden hose to the drain valve at the bottom of the tank. Run the hose to a convenient drain location. Be careful if you use a real cheapy garden hose... some of these become very soft when hot water runs through them, and may leak! If you don't have a drain in the basement floor or suitable sump hole, you have my sympathies... this drain-down can take a while with a bucket! Oh... and be careful if you use a soft plastic bucket. It can also soften from the heated water so don't overfill it or burn yourself!
4) Open up the hot water side of any faucet. Open up the drain valve on the tank and allow it to empty. Miller time. That is, unless you don't have a sump...
NOTE: If the drain valve clogs, turn on the cold water supply to the tank to use water pressure to "blast" through the clog.
5) When the tank is empty, shut off the drain valve and turn on the cold water. This will loosen up more sediment in the tank through the churning action of the cold water in the tank. Let the tank fill partially and drain it again. In fact, if you find that the sediment starts to clog the drain valve, turn on the cold water supply to the tank, which will help loosen the sediment and blast it out.
If you have extreme amounts of sediment, you may have to repeat this procedure a few more times. Look at the drain water... if it is running clear, you are done. Shut off the drain valve, open the cold water supply and allow the tank to fill. Once water comes out of the hot water faucet, the tank is full and your task is done! Now, you can turn the electricity or gas back on to heat the water.
How frequently to clean the sediment from your tank...
This depends on the source and purity of your water supply. Some pros recommend doing it annually, some every few years. I would recommend doing a partial drain down annually if you find any sediment in the tank, otherwise every couple of years.
Remember that with an electric water heater, you must turn the power off! Even a partial drain down may expose the upper heating element to the air and permanently damage it!

Posted on Jan 21, 2009

  • 34 Answers

SOURCE: Water heater with electonic igniter will not work in power outage

What type of heater is this? I need to know the model name and make and then we can go threw the process of how to do it. Most gas heaters do not have power to them and I only know of a few tankless heaters that do.

Posted on Feb 08, 2009

  • 1 Answer

SOURCE: HOOKED UP WATER HEATER CANNOT GET HOT WATER

recently got a new water heater, we are not getting very much hot water and I think it is hooked up wrong. Cold water coming to the tank is in (H) spot on the heater and?? will this keep us from getting very much water???

Posted on Jan 03, 2010

  • 82 Answers

SOURCE: need to empty reliance 501 hot water heater how?

1) Shut the breaker off to it at the panel. 2) Hook a hose up to it (the bottom has a drain). 3) Close the valve to the water heater (on the cold water supply). 4) Open drain on the bottom of water heater. 5) Open the relief valve to allow air into the tank (it won't drain otherwise - think if you put your finger on one end of a straw - the liquid stays in until you let go). Why are you draining it by the way?

Posted on Jan 31, 2010

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Why does the water suddenly runs COLD after many minutes of running hot?


Unless you are using a tankless hot water heater, there is a limited amount of hot water available in the tank. Electric and gas water tanks need time to recover after use, and if you are using heavily, it can exhaust the available supply. That said, there are a couple reasons why you may have less hot water than seems normal. In both electric and gas water heaters, silt can form in the bottom of the tank. This will build up over time and displace water. It also reduces the heating efficiency of gas units. There is a drain valve on the bottom of water heater tanks to allow for purging of this silt periodically, but few ever do it. You could also have, in the case of an electric hot water heater, a bad element or thermostat. Most electric heaters have an upper and lower element and thermostat. If one fails the other will still work, but the water takes longer to get hot and will deplete faster.

Nov 04, 2015 | Water Water Heaters

1 Answer

Rheem rr410T - my drain valve is leakin!!, I have now drained the hot water tank - what do I do now - just opened the cottage and had water everywhere after turning the water on...I am not a fix it person...


1) If leak is simple, then put garden hose cap over end of drain valve.
Pick up hose cap in garden department at home center or hardware store
http://waterheatertimer.org/images/garden-hose-thread-cap-76.jpg

2) Or install a garden hose and run to a drain until valve can be replaced.
The hot water will not last as long for showers until valve is fixed

3) If drain valve is cracked, it needs to be replaced.
If you are a DIY adventurer, then replace drain valve.
Since drain valve is plastic, expect to use every tool you can borrow when the plastic valve breaks off.
http://waterheatertimer.org/How-to-replace-water-heater-drain-valve.html

4) Call a plumber who will prefer to replace with new heater.

5) If you want adventure, then replace heater yourself and save $400 installation. Here in Houston 2011, electric heater costs 220 and gas 330 at local box store. Offer 10% less.
Open following link for gas installation, and use basic information for replacing electric.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

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May 20, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Need instructions on how to drain and flush.


You posted under water heaters.
Always let a water heater cool off before draining.
Hot water can cause serious burns. Immediately put burned area into cool water.

There are different types of water heaters, and each might drain and flush differently.
Open following link for typical gas and electric tank-type:
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html#flush

To drain and flush tankless, it can be called de-liming tankless.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#de-lime
Be sure to read tankless manual for instructions and advisories, and required maintenance.

If you have boiler, or indirect water heater, solar water heater, or RV heater, the instructions above may not apply. be very careful with a boiler due to extreme high temperatures.
Add a comment and give more information about heater, for possible help.

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May 17, 2011 | Water Heaters

1 Answer

There is a high pitched constant sound coming from behind the electric water heater......no water leakages, I turned off the electric and it continued. I ran the hot water for a long time.......it did...


Read following technical bulletin from Rheem:
http://waterheatertimer.org/pdf/Noisy-gas-water-heater.pdf

Find age of water heater:
http://waterheatertimer.org/pdf/WaterHeaterSerialNumberDecoder.pdf

There is no valve inside the tank.
http://waterheatertimer.org/How-it-works.html
The constant noise sounds like water heater is running full time, except same sound after electric was turned off. Is there a check-valve nearby? What happens when you open-close shut off valve located on cold water line above tank?
Is there a water leak inside house, or is TP valve running water into a drain line?
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

Post question on professional water heater forum
http://www.thetankatwaterheaterrescue.com/forums/forum3/

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Mar 28, 2011 | Water Heaters

1 Answer

I just noticed that my hot water heater that is 6 years old is dripping very slowly from the bottom faucet, how can i stop this leak. thank you.


If you mean the drain valve, then buy garden hose cap at home center.
Cap will have rubber washer that seals tank.
If drain valve is plastic, the cap may not thread on without sanding down end of plastic drain valve.
Otherwise replace drain valve, which is simple if drain valve is brass, but can be difficult if drain valve is plastic.
Turn off power to water heater: Electric: turn off circuit breaker. Gas: turn knob to pilot.
Turn off water, open bathtub spigot on Hot side, drain water heater, remove drain valve with wrench.
If plastic drain valve breaks while being removed, then 'gently' break out broken part using hammer and big screwdriver.
Buy new drain valve at box store in water heater department.
Put teflon tape on new drain valve threads.
http://waterheatertimer.org/Water-heater-is-leaking.html
http://waterheatertimer.org/Water-heater-will-not-drain.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

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Mar 06, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

I pipe (sump pump connection) near the hot water heater was leaking and the botton portion of the 'hot water heater' got wet, now the 'hot water heater' will not turn on. Should i assume the 'heater' is...


1) Electric heater, do not touch electric heater that is wet or has been wet unless power is 100% off.
2) Gas heater: Same applies to gas heater if controls are electronic, or if electric is grounded to hot water pipe.

3) Manufactures suggest replacing water heater that has been flooded.
Warranty is voided.
Set next heater higher.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

4) Electric: You can replace thermostats and elements, but if insulation is wet, the unit could short and be continual electrocution danger >>> and you can't operate electric heater with covers removed because cool air will keep thermostats from reading correct temperature.
5) Gas: You can clean out combustion chamber and replace gas valve and burner assembly, but new heater from local hardware or box store will save time and possibly money.

6) Use old heater as tempering tank if incoming water is cold:
http://waterheatertimer.org/Tempering-tank.html
Or use old tank as solar collector:
http://waterheatertimer.org/How-to-make-a-solar-water-heater.html

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Feb 25, 2011 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

1 Answer

It is leaking out of the top. not out of the hot or cold valves but out of a nut by the cold side.


Your tank is rusted out and needs to be replaced.
Link below is a troubleshoot for leaking water heater.
http://waterheatertimer.org/Leaking-water-heater.html

Protect yourself first:
If your tank is rusted, there is danger of rupture.
My friend welded his leaking tank, but he assumes the risk.
Ruptured tank can cause massive damage and water runs until it is shut off.

Hot water tank is under pressure because hot water expands and pushes against tank wall.
Turn off water to tank.
Turn off power supply:
Electric: turn off circuit breaker.
Gas: rotate knob to pilot so pilot stays lit but burner will not fire. To turn back on, rotate knob to ON.
Open hot side bathtub valve and relieve pressure on tank.

You can limp by with rusted tank by turning water heater on when hot water is needed.
Shower uses 5-9 gallons hot water
Bath uses 12-15 gallon hot water
Ordinary gas heater makes 41 gallons hot water per hour
Ordinary electric heater makes 20 gallons hot water per hour.

I buy water heaters at Lowes, Home Depot, Ace.
Look for scratch and dent models.
Buy drip pan for water heater.
Wrap electric heater totally with insulation except TP valve.
Buy new flexible connectors for water lines.
Offer 15% less than marked price on tank, because the store makes money on additional items.

> Most people can install their own electric heater since you just connect water pipes and electric wire, and it's done. Read link below since there are tips that help you buy and install electric.
> Generally people are nervous about installing gas water heater, so step-by-step instructions are shown on link below. Remember gas line is under less pressure than water line, so if you can install a water pipe, you can install gas line to water heater with crescent wrench, and soapy water to check for leaks.
How to install gas water heater:
http://waterheatertimer.org/How-to-install-gas-water-heater.html

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Jan 13, 2011 | Water Heaters

1 Answer

Rheem water heater model #82V661 serial # RH0106D11663 leaking water at lower panel. Water is coming from above wiring and control panel. Is this fixable or need to be replaced? Mfg date is 01/2006


You have 240volt electric water heater
Check both elements for leaking.
Check top of tank for leaking pipes.

If water heater is leaking from side of tank, then tank is rusted out and could rupture.
This tank must be replaced.
http://waterheatertimer.org/Water-at-bottom-of-water-heater.html

My friend welded his tank to get more life out of tank, but he assumed the risk.

Hot water heaters are under pressure from heated water which expands.
If tank ruptures, water will flood out of tank and water will run until shut-off is turned OFF.
This causes major damage inside home.

Protect yourself first, and then let's talk more.
1) Turn off water at shut off located on cold water line above tank.
2) Turn off power to water heater:
Gas heater, rotate valve to 'pilot' so pilot is lit but burner does not turn ON.
Electric heater, turn off circuit breaker.
3) Open tub spout on hot side and let run a bit to relieve pressure.
4) Now your property is safe.

You can limp along with failed heater if leak is slow.
Turn heater ON when you need hot water.
Typical Gas heater makes 41 gallons hot water per hour.
Typical Electric heater makes 21 gallons hot water.
Shower uses 5-9 gallons hot water, bath uses 12-14 gallons hot water.
http://waterheatertimer.org/images/Water-heater-reference-guide-2.jpg

If you are going to install heater yourself:
Look at label on side of old tank to identify size and particulars.
I buy ordinary heaters from Lowes and Home Depot and always buy scratch-n-dent models when possible, because superficial damage to outer tank does not lower lifespan of heaters I have installed.
Buy same size heater if it worked fine before.
Buy new flexible water connectors.
Set water heater in drip pan.
Offer 10% less than price shown. Make them deal with you. Shop Ace hardware, Lowes, Home Depot. Kick the tires since you have a bit of time.

I know you have electric heater, but many folks read these answers, so I include info on gas too.
#1 rule) tankless heaters are a rich-man's toy, because tankless will never pay you back, and will become major money pit if you encounter 1 repair. Electric tankless heaters require larger electric service box. Gas tankless require larger gas line (larger gas line, more gas consumption, bigger bill unless you cut consumption)
2) How to install gas heater:
http://waterheatertimer.org/How-to-replace-gas-water-heater.html
3) How to install electric heater:
Read link above because many of same steps apply to electric.
The difference with electric, is turn off power, disconnect wires, and reconnect wires exactly like before. Set electric heater directly on insulated surface like dense blue styrafoam. Cut styrafoam in circle so it fits inside dip pan. Wrap entire electric heater with insulation blanket, except don't cover TP valve.
4) Connect bare copper jumper wire between hot and cold pipes to prevent stray current corrosion which will shorten life of tank. Make sure cold water line is grounded.

Also read:
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

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Jan 07, 2011 | Rheem Water Heaters

1 Answer

There is no hot water coming out how do I fix it


1) You have to give more information to get accurate answer.
Is this a gas or electric water heater.
What type of heater: tankless or tank or hybrid or power vent?
What symptoms have you noticed prior to now? Less hot water than usual?
Have you installed new gas appliance that might affect gas water heater.
Did you paint floor with urethane and gas heater suddenly stopped working?
Is the circuit breaker tripped on electric heater?
With electric heater, did you open top panel and push in reset button?
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html
How old is the water heater? What brand do you have and what does label show on side of tank?
Is the water heater also leaking, or is it in good condition?

2) If you don't want to answer questions for further free help, then take advantage of fixya phone service. For a price, fixya expert will ask you same questions and more questions over the phone, and then possibly help you resolve the issue.

3) If you don't want do-it-yourself help from fixya, call a plumber and give him information listed in questions above, and plumber will fix heater or install another one. The more knowledgeable and helpful you are, the more the plumber will try to help you.

4) Double-check information you receive from fixya and from professional plumber by posting question on professional plumber's forum like the Tank: http://www.thetankatwaterheaterrescue.com/forums/forum3/

Jan 01, 2011 | Whirlpool Water Heaters

1 Answer

The hot water is no longer very hot, just nice and warm. What caused this? I have an electric water heater.


Listed below are suspects in order of ease.

1) Check that hot water is not running out of TP valve and down into a drain.
This will cause water heater to run all the time but not be able to keep up.

2) Test elements before replacing anything:
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-element.html

3) Test electricity to water heater:
http://waterheatertimer.org/Test-electricity-to-water-heater.html

4) Replace both thermostats.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

5) Final thing would be full troubleshoot:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Sep 26, 2010 | RELIANCE ELECTRIC WATER HEATER

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