Water leak everywhere

[frazierdee]

We have a water leak that can't help but be something serious. So far it is
only dripping from underneath. I see no sign of water inside - not on any flooring, bathroom, shower etc. We have a tech coming out Thursday. We are hoping a mobile tech can fix it but I have my doubts. At first I thought it might be the gray water holding tank. It's not the black water. Doesn't seem
to be the incoming water, but outgoing drain. At first it was dripping just under the dump tank area, but it is quickly spreading - under the kitchen area, and now on the other side - probably bathroom area. Does anyone have a schematic or any idea how the pipes go underneath? I want to be
educated when the tech gets here. Thanks

[STORMY 1]

Sounds a little like the gray water tank leak I had. Water was dripping into the storage area below the tanks. Fixed with a "cold weld"

[spritz]

Are you hooked up to city water? Ours leaks around the toilet if there is too much water pressure. We bought a regulator and that stopped that from happening.

[STORMY 1]

I also had water coming under my shower wall. No regulator installed then. Bad washer on shower faucet and higher pressure blew it out. Regulator is a great item to have.

[frazierdee]

We are on city water, but I am pretty sure it's not a pressure thing. I've turned the water off for the night, will investigate more tomorrow. I wish I could see how the pipes etc are laid out under there. And what does the gray tank look like? Although now it's spread so much I don't think it's the tank, more like a hose? If it were the tank I don't think it would be leaking in such a wide area, would it? I sure hope a mobile can fix it.

[WannaBFlTmer]

Turn off and disconnect city water. Open all faucets to relieve built up pressure then turn them off. With hose disconnected, turn water on to a much lower pressure and remember how far you turned spigot to achirve low pressure. Turn off water, reconnect hose to rig and turn water back on to very low pressuure spot on spigot. Inspect for continued leaking.

If water is appearing in multiple locations it certainly sounds like classic over-pressure limit where leaks will occur at many or all pipe joints.

[CampDaven]

Originally Posted by frazierdee

We are on city water, but I am pretty sure it's not a pressure thing.

On city water it can be a pressure thing. A pressure regulator with a gauge will tell you. Have seen over 110 psi in campgrounds. Maybe ask a neighbor with a gauge?
Once pressure makes a leak it usually stays a leak at any pressure. Try it with only on board tank/pump pressure?

[bigmichael]

Don't count out the mobile tech. Our experience has been overall much better with the mobile techs we have used over the years vs the few times we have been in a dealership. Good Luck.

[Koop]

Originally Posted by WannaBFlTmer

Turn off and disconnect city water. Open all faucets to relieve built up pressure then turn them off. With hose disconnected, turn water on to a much lower pressure and remember how far you turned spigot to achirve low pressure. Turn off water, reconnect hose to rig and turn water back on to very low pressuure spot on spigot. Inspect for continued leaking.

If water is appearing in multiple locations it certainly sounds like classic over-pressure limit where leaks will occur at many or all pipe joints.

The spigot regulates flow, not pressure. Once the system is filled the pressure will equalize on either side of the valve (spigot).

[vraines]

Not sure if your motorhome has a pop out or not, but the kitchen sink drain line came loose and leaked a lot before I could find the source. The line must swivel as the pop out slides out. There is a lot of tension on that line. This the second motorhome that I have had that problem with.

[Bubwheat]

...do you have your water heater on when this leak occurs? If so, it might be a leak from the water heater not having enough "air cushion" for it to work properly.

If you think it might be the water heater, turn off city water, open the faucets, and then open the relief valve on the water heater, and let it drain. After draining, close the valves, shut off the faucets and then turn on the city water. This will restore the "air cushion" in the heater, and in my case solved the mystery leak that I had in my TT.

[WannaBFlTmer]

Originally Posted by Koop

The spigot regulates flow, not pressure. Once the system is filled the pressure will equalize on either side of the valve (spigot).

Well duh-that was stupid of me wasn't it? Had a rv tech acquaintance who hooked up to city without pressure regulator-water coming out everywhere and yes-he had to redo joints because once busted they still leaked. He let it go for a while day though. Hope not the case here.

[mel s]

Originally Posted by WannaBFlTmer

, turn water on to a much lower pressure and remember how far you turned spigot to achirve low pressure. Turn off water, reconnect hose to rig and turn water back on to very low pressuure spot on spigot. Inspect for continued leaking.

Be aware of the following:
A SPIGOT CAN ONLY CONTROL the the VOLUME of the incoming water.
You CAN NOT control water PRESSURE with a SPIGOT, (aka: water faucet).

If the spigot is fully opened the pressure in the RV water system will quickly reach the full pressure of the incoming water supply.
If the spigot is only opened slightly, allowing a lesser volume of water to run into the fresh water system, it will simply take longer for the water at a trickle to pressurize the system up to the same pressure.

To CONTROL, or reduce, the water PRESSURE you MUST use a PRESSURE REGULATOR on the incoming water supply.
Mel
'96 Safari

[Coaster1]

^^^^^Well stated!