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Hot water coming out of overflow pipe on my vulcan everhot water

Hot water continiously coming out of over flow pipe

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  • Anonymous Mar 30, 2014

    I have reduced my hot water cylinder temperature but still have water flowing from my over flow pipe on to my roof

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Assuming you are talking about the temperatur/pressure relief valve, it is stuck open.

1. Turn off gas or electric to water heater
2. Close water supply to water heater
3. open hot water faucet on nearest fixture to depressurize hot water system.
4. close tpr valve (you may have to push in on the center spine. It may be resistant to closing from sediment. If so, opening and closing several times may solve that issue.

Once you get the tpr valve closed, close the faucet and open the supply valve. If the tpr stays closed, go ahead and turn on the gas/electric and re-light pilot and turn on control etc.

If the TPR blows again, you will need to replace it. YOu can buy a new one at any plumbing supply store. Shut down the heater again, drain a bit of water out using the valve on the bottom of the tank. there is probably copper pipe connected to the TPR valve which you may have to cut or maybe can just unscrew. The TPR threads out of the tank, install the new valve (make sure to use pipe dope or teflon tape.

Posted on Jan 04, 2009

  • Dorrian Wilkins
    Dorrian Wilkins Oct 18, 2013

    If the Temp relief valve has opened and is now leaking this means that either sediment has built up on the TPR valve Temp prob or the other reason is that your Temp Setting has been changed on the heater.

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My water heater heats everything except my lower shower


Let's walk our way thru this one: I assume you have an upstairs shower, and a downstairs shower?-- Are you able to follow the pipes coming out of the Hot Water Heater?-- Can you trace where the pipes to the upstairs shower go?-- And what about the pipes to the lower shower? -- Do they BOTH come off the HOT water pipes coming out of the top of the HW Heater?
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Water meter keeps running. When I turn off the water supply to the hot water tank the needle on the water meter stops, does that mean that I have a leak in the hot water pipe coming out of tge tank.


Yes you have a leak on hot pipe or TP overflow tube.
Put ear against pipe to listen for sound of running water.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#listen
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Check each faucet for leaks.
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Install continuous flow hot water system


I dont know if any tankless that have that installed.
Because as soon as it detects water movement it starts heating and if you continuous movement it will heat all the time. If that happens then something is going give and it wont be pretty. With a tank type water heater it just recirculates back to the tank and get reheated as needed.

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After water is sufficiently heated up, water flow out of the overflow pipe for about 2-3 minutes. Is it normal?


No.
Water should not leak out of water heater.
Water should only come out of the TP valve and down the overflow pipe if water is too hot, or if TP valve is bad, or if you have stacking condition.
http://waterheatertimer.org/How-to-replace-TP-valve.html
http://waterheatertimer.org/Stacking.html
http://waterheatertimer.org/Leaking-water-heater.html

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Check temperature off the water for proper functioning thermostat. Look at set points on heater's thermostat. It's made to let water out when water get's to a certain high temp. More than likely it will be the pressure relief valve going bad and not holding.

T&P releif valve can be replaced on heater. Turn water off and remove with a pipe wrench. It will come out and any hardware store will carry it. T & P pressure relief valve is 3/4 threads.

When installing new one use teflon tape on threads.

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remove and, replace the pressure/temp valve. This valve is for safety and, if it is leaking it must be replaced immediately.
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That overflow is the Pressure Relief Valve.usually they are set at 3-3.5 bar but over time they can be gunged up inside and leak/allow water to flow out. Dismantle & clean or replace. Turn off mains water and ch pipes before removing - operate valve remove & allow for some water to leak from it

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look can look to wear the water nis comeing from

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