Best hot/cold water pipe leak detection?

rjxj wrote:

MarkieBob wrote:

dougrainer wrote:
The RV systems are designed to be OK in 100 psi. What PSI are you thinking is a problem? The standard CG or supply PSI is around 50 to 60 PSI and the RV pressure regulators give you 45 PSI. Doug

I've had pex line fittings develop a VERY slow leak--some of which are not visible (like under shower). The pump may or may not cycle for these. I just thought a device to monitor slight fluctuations might be helpful.

BTW, I bought the MH new. My trusted rv repair dealer in fixing a small fitting leak was concerned who put the fittings in as they were not done correctly. He was surprised when he learned that I bought it new

Lol. I'm not laughing at you but "he was surprised that you bought it new"? I and you and many on here are do it yourselfers and see cheesy stuff ALL the time non rv's. He has somehow not seen the same and thinks they come the factory perfect? Now that's

funny.

Built on a Friday afternoon by guys who are eyeing the keg of beer waiting

MarkieBob wrote:

dougrainer wrote:
The RV systems are designed to be OK in 100 psi. What PSI are you thinking is a problem? The standard CG or supply PSI is around 50 to 60 PSI and the RV pressure regulators give you 45 PSI. Doug

I've had pex line fittings develop a VERY slow leak--some of which are not visible (like under shower). The pump may or may not cycle for these. I just thought a device to monitor slight fluctuations might be helpful.

BTW, I bought the MH new. My trusted rv repair dealer in fixing a small fitting leak was concerned who put the fittings in as they were not done correctly. He was surprised when he learned that I bought it new

Lol. I'm not laughing at you but "he was surprised that you bought it new"? I and you and many on here are do it yourselfers and see cheesy stuff ALL the time on rv's. He has somehow not seen the same and thinks they come from the factory perfect? Now that's funny.

dougrainer wrote:
The RV systems are designed to be OK in 100 psi. What PSI are you thinking is a problem? The standard CG or supply PSI is around 50 to 60 PSI and the RV pressure regulators give you 45 PSI. Doug

I've had pex line fittings develop a VERY slow leak--some of which are not visible (like under shower). The pump may or may not cycle for these. I just thought a device to monitor slight fluctuations might be helpful.

BTW, I bought the MH new. My trusted rv repair dealer in fixing a small fitting leak was concerned who put the fittings in as they were not done correctly. He was surprised when he learned that I bought it new

If you have no expansion tank, just listen for the water pump.
If you have an expansion tank, remove it or remove the air for diagnostics.

If you are worried about a special area you can get a battery powered water sensor/alarm.

Otherwise periodically look under the RV for a wet spot.

My non-scientific test at the start of a season consists of hooking up my air compressor and listening to the check valve in the city water connection. It happens to make a sort of reed tone when air flows through it, even relatively small volumes of air. If there's a tap that's cracked open a bit you can hear it humming away. No noise when everything is shut implies that there is at least not a major leak in the plumbing system.

I don't pretend that this would detect a leak of a drop every now and again sort of magnitude. Probably a leak-down test with air would go a ways towards checking for that: pressurize the system with air, disconnect the compressor, and check that the air pressure remains after some period of time. A pressure gauge would be more precise, of course.

I do find my water heater drain plug tends to leak a bit of air even if it doesn't leak an appreciable amount of water. Even a small water leak there is not a concern to the longevity of the RV since it just drains harmlessly outdoors (and since I intentionally "leak" a few gallons of water out of it whenever I drain the plumbing system).

.

I sounds like you are concerned when hooking up to the campground source. We always fill the Fresh Water tank and use the pump. If the pump turns on when no one is using water you know there is a leak. Every 2 or 3 days we refill the Tank. Not a big task.

Chris Bryant wrote:
They used to make a small inline device with a clear window and ball- shut everything off and if the ball moved at all there is a leak. They may still be around.

That's called a flow meter, they are in use in industrial settings. I agree that you are probably unreasonably worried. But there are planty of available leak detectors: Amazon

The RV systems are designed to be OK in 100 psi. What PSI are you thinking is a problem? The standard CG or supply PSI is around 50 to 60 PSI and the RV pressure regulators give you 45 PSI. Doug

I bought a few battery powered water detectors at HD. Placed one in the basement near my pump/pressure tank, one under bath sink and one under kitchen sink/water heater.

There may be other areas to monitor such as tees that might branch off to outside shower etc. They do work as mine alerted me to a water heater fitting that started leaking. I fastened them in place with Velcro and folded up a piece of paper underneath them that quickly sucks up water. They are very sensitive but the paper towel helps assure that the sensor tips contact moisture. It's not a perfect system but far better than nothing.