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I am in spain and the pressure relief valve on the hot water tank is leaking a lot of water. i have already changed the valve.

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If you have put on a new pressure relief valve and the water is still coming from the mouth of the valve then the valve is faulty or you may need to purge it by flipping the valve up and then releasing . If the water is coming from the threads then yo need to remove and reinstall with plumbers tape around the thread. If you did and there is still water coming from the thread It may be cross threaded and you may have to replace the heater.

Posted on May 17, 2011

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Posted on Jan 02, 2017

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Got a trauma ultrastore water heater in my bailey senator caravan water is coming out from either overflow/pressure value or maybe a leak can anyone advise on how to try and sort this out


There is no overflow pipe on the water heater. There is an overflow/vent pipe on the fresh water storage tank though. It is normal for this to leak water at times.

Its possible you might have some type of winterizing hot water tank drain. But that should have a valve on it. If you have such a valve it should be shut off and not leaking.

That said we move on to the water heater. This is assuming you have a water heater leak. Or a leak with something connected right at the water heater.

You could expand this concept to move on to other pressured parts of your plumbing system to troubleshoot and isolate.

I would remove the pressure relief valve and rig up a fitting you can screw in. Set up with a pressure gauge and a air filler fitting like is on an inter-tube/tire. Some plumbing stores sell them already made up.

You might have to custom adapt this using some rubber hose rated for air compressors. Using barbed to threaded fittings and hose clamps to withstand pressure.

Install your air valve/gauge in place of the relief valve. If you have bypass valves this is a little easier. Close off the bypass valves to isolate the tank from the plumbing system.

If your plumbing set up has no bypass valves, disconnect the inlet and outlet plumbing lines. Screw in appropriate sized plugs in the two tank holes. Use teflon tape and make sure they are secured. (All easier said than done).

With an air compressor or tire pump pressurize the tank to 50psi. Soap all fittings, and your plugs, to insure you have no leaks around anything screwed in. Let this sit overnight. If your pressure drops off you have a leak. If your pressure holds I would suspect the relief valve that you removed.

You could move your air valve/gauge set up to the water inlet or outlet pipe and reinstall the relief valve, to test the relief valve. Pressure up to 50psi and soap everything again. Let it set overnight again.

If you suspect the relief valve before any of this troubleshooting starts, you might just start by installing the air valve/gauge in the inlet or outlet right from the get go.

Tanks often get pin holes on the bottom as they start to corrode through. Hard to visually find in many cases. Pressurizing with air will tell you whether you have a leak for sure. Not get everything wet in the process. Using common sense and a process of elimination, you should find the problem. There are also drain valves and in some cases anode rods that are screwed into the tank and may be a source of the leak? Soap all of these while troubleshooting.

The image is my setup. It is a little more fancy than described. I have a little valve off a T so I can use the little turn wheel and open the valve to relieve pressure without unscrewing everything. That also beats holding in the little spring loaded needle valve of the "tire filler" valve shown sticking out the right side. But I think you will get the idea of the basic concept?
cc6f5d26-00e2-4547-8a65-107190150fbd.jpg

May 23, 2017 | RVs

1 Answer

How to change out copper piping from release valve


If the release valve referred to is the pressure release valve, then a water leak out the attached vent pipe is an indication that the valve is failing. To change the valve, the water must be allowed to cool (turn off AC power or gas) and the water level inside the tank must be lowered (drained) to below the level of the pressure relief valve. Once this is accomplished the vent pipe is unscrewed from the relief valve and the pressure relief valve is unscrewed from the water tank. A new pressure relief valve with a sealant on the threads, is then screwed and tightened into place with the outlet port facing downward. The vent pipe is attached to the new valve and the tank refilled with water. A hot water facet must be opened to allow air to exit while filling. Upon becoming full (water will begin to flow from facet), turn off the facet and restore AC power or gas, therefore allowing the water heater to heat up. When the first hot water is utilized there may be some air expelled from the facet.

Sep 13, 2015 | Water Water Heaters

1 Answer

Relief valve buzzing noise


Add an extrol expansion tank to the piping. You can get one for about thirty dollars from the hardware store.

Apr 06, 2014 | Rheem 82V40-2 Fury Electric Residential...

1 Answer

Pressure releif valve leaking


Hot water pressure relief valves serve two functions. The first is to remove high-pressure water from the hot water tank. The second function is to act as a high temperature valve to remove water that exceeds a predetermined point for the valve. Both of these relief settings are preset at the valve factory. Many pressure relief valves will come with a metal tag that identifies these release points. If you're attempting to remove the hot water heater pressure relief valve, pay careful attention to ensure that you replace with the correct valve.

Your hot water heater has a pressure relief valve safety mechanism. When pressure inside the water tank exceeds certain limitations, the valve opens up to allow the pressure to be released. A faulty pressure relief valve will not release excess pressure, which could cause extensive damage to your home. You should test the hot water heater pressure relief valve once every six months to ensure proper operation. If the pressure relief valve fails the test, replace the valve with a new one immediately

Locate the pressure relief valve on your hot water heater. The pressure relief valve has a lever handle on top with a drain pipe attached to it. The pressure relief valve is most often on the side of the water tank toward the top. Newer models of hot water heaters have the pressure relief valve on top of the water tank.

  • Inspect the area around the pressure relief valve for signs of leaking water. If there is leaking water near the relief valve connection, replace the relief valve. If no leaking is evident, proceed with testing the pressure valve.

  • 3

    Examine the area below the pressure relief valve drain pipe. Most water heater closets either have a drain in the floor below the pipe or the pipe is inserted into another pipe to direct the water out of the home. If the end of your drain pipe is not in another pipe or there is no drain in the floor, place a bucket under the drain pipe to catch water when you test the pressure relief valve.

  • 4

    Pull the lever handle on the top of the pressure relief valve up with your fingers. A working lever will lift up without difficulty.You should begin to hear water going through the drain pipe. Slowly release the lever to shut off the pressure relief valve. The pressure relief valve is good. If you did not hear water running through the drain pipe, lower the lever on the pressure relief valve and replace the valve. If the lever is difficult to raise, do not force the lever. Replace the pressure relief valve.


  • Now with all that said if you have a closed loop water supply system and you have a pressure vessal/expantion tank it may have gone bad and is making the TP valve leak. you can call your water provider to see if you have closed loop system.

    Feb 04, 2011 | Whirlpool Water Heaters

    1 Answer

    I have a hot water heater that when running seems to build up an excessive amt of pressure. We just replaced the pressure valve because the old one started leaking when the hot water was running for any...


    The most likely problem is that the thermostats are set too high. Remove the thermostat cover plates and look to see where the thermostats are set. The range should be between 120F and 135F. Liquids expand with heat so the higher the temp, the high the pressure. Decrease the setting on the thermostat until the leak stops.

    The other likely cause is a head of air trapped in the top of the tank. After drawing hot water, it wiill be displaced by the incoming cold makeup water. This will compress any air in the top of the tank. As the water heats, the air will heat and pressure will build - possibly causing the leak. You can purge the tank of air by opening the pressure relief valve until water comes out (which I assume that you have already tried).

    Dec 09, 2010 | Whirlpool Water Heaters

    1 Answer

    Just purchaced a 99 jamboree with an atwood G6a-8e water heater. while on a trip I lit the water heater, and after 30 minutes someone told me water was leaking from the side. I noticed the pressure relief...


    It's gas operation only, but has electronic ignition for propane. ( just to confirm, if you look at back of water heater, it would have a metal or black plastic cover and hydro cable going in side or top of it.)
    There are usually 3 things that may cause pressure relief to leak. 1) Faulty,corroded pressure relief valve, which usually needs to be replaced if it goes faulty. 2) water temperature is getting too hot, which could indicate a faulty thermostat. 3) If your hooked up to city water, the pressure may be too high, causing excess pressure build up in hot water tank, thus pressure relief opens. If your running off your on board pump, this is probably not the cause, as they are usually set at 40 psi.
    Ist, - try pulling lever on relief valve slightly open ( careful it's hot !!) to clean out any calcium that may be logged on seal thus causing leak. If that doesn't do it, and the hot water isn't running out steady and appear to be under extreme pressure while leaking, then I'd change the pressure relief valve. Remember when you do, shut off water to system, and relieve pressure by opening a tap, and pressure relief as well after that. New one shouldn't be too expensive, just make sure you get same thread, 1/2"NPT or 3/4"NPT. Use a little teflon tape, or pipe dope whatever you prefer when re-installing as well as clean threads a little before.
    If it really starts gushing out pressure relief when heating or heated, and water seems hotter than normal, it's more than likely a faulty thermostat. I'll wait for your reply on what condition your experiencing before I go in to how to change the thermostat.

    Nov 17, 2010 | RTO Atwood Water Heater - 6 Gal LP

    1 Answer

    Water is putting the burner out


    if you check the bottom of the tank or there is water on the floor constantly..check the top of the tank most of the time the shut off valve is leaking or the hot cold connection on the top is leaking..if both these are dry then there could a crack in the tank

    Jul 05, 2010 | Rheem Water Heaters

    1 Answer

    Drain pipe from hot water heater leaking on the outside of home ? cause


    Water may be coming from the temperature- pressure (TP) relief valve, which releases water when it senses excess pressure. Excess pressure can be caused by the temperature being set too high, by the main water supply pressure to your house being too strong, or by special valves that reduce water pressure in your water supply system not allowing for hot water expansion in the tank. Or, the TP relief valve itself may be faulty. 20090617111024_hot-water-heater-leaks.gifIf you find the leak is coming from your TP relief valve, consult your owner’s manual for instructions on what to do, or contact an appliance repairperson immediately—if too much pressure builds up, your tank could explode. So, adjust temperature to about 120 deg F , if problem persists, change TP valve.

    Mar 25, 2010 | Heating & Cooling

    1 Answer

    Hot water tank leak


    drain valve must have already been leaking, that's why someone put the cap on. It's ok to cap the drain but never the pressure/temp relief. If the water is coming out of the drain (not around it) you could either replace the cap or the drain valve to stop the leak - otherwise it's time for a new water heater.

    May 24, 2009 | Water Heaters

    2 Answers

    Pressure valve releases sometimes , I lose a good bit of water. When i tap the valve handle, it shuts off.


    The pressure release valve is a safety feature. If it is leaking alot, it could be that the valve needs to be replaced or it could be that the high temp. shutoff in the hot water tank is malfunctioning.

    Apr 20, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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