Pex

Shadow Catcher wrote:
I do a leak down test each year using air. After blowing out the lines with compressed air I pump it up to 80 PSI and let it sit over night, if I don't have 80 PSI in the morning I start looking for leaks using a dish soap water mix. A mirror is often necessary.

The pressure will drop when the temperature drops. One would expect the pressure to be less in the morning.

This test would be more revealing if you pressurized in the morning and checked in mid-day. If it is lower you may have a leak.

I do a leak down test each year using air. After blowing out the lines with compressed air I pump it up to 80 PSI and let it sit over night, if I don't have 80 PSI in the morning I start looking for leaks using a dish soap water mix. A mirror is often necessary.

The other way you get high pressure is when you heat water and do not have an expansion tank. Pressure can go past 100psi and the TP may weep.

The basic water pump has a 45 psi discharge.....but only 2.8 gpm

The next step up pump has 45 psi discharge but 3.5 gpm

The upgraded pumps have 55 psi discharge......4.0 gpm

45 psi is more than adequate.......but flow is the key.
The higher the gpm rating the better

endlesssky wrote:
Doe's anyone know what your system pressure is when pumping from your holding tank?

Mine is 40-60 just like home, the same lines and fittings are also used there.

If you mean from your fresh water tank, using the 12 volt pump, most common pressure is 45 PSI.

Doe's anyone know what your system pressure is when pumping from your holding tank?

Mine is 40-60 just like home, the same lines and fittings are also used there.

Its not water pressure the problem. Its volume. A complete home can operate at 15 psi with the correct volume. Volume is accomplish with proper pipe sizing.

Just my 02.

Lurker52 wrote:
Does anyone know what pressure Pex tubing is rated for. My Cameo is plumbed with it. I use a water pressure reducer but I wonder if it is necessary. DW would like more water pressure for the shower.

I have a 2012 Cameo with Pex. The Cameo does not indicate what pressure to have your water. But I have a note that I got from somewhere saying 45 PSI, however the pump that is installed in the 5er is set for 55 PSI. So I would not exceed 55. A word of advise. The Cameo does not have a water shut off for the toilet. It might be a good idea to get a PEX valve fitting and install the shut off valve, just in case you have a toilet problem.

If you want to increase your water pressure for the shower, fill your water holding tank and run the pump when taking a shower. The pump will compensate for any low PSI coming into your coach. I just had to install a new pump and it mentioned this feature in the pump install brochure.

Yes on the oxygenic......if taking out the water restrictor doesn t work

Get rid of cheap water 'reducer'.........get a good quality water pressure regulator with a good flow rating (4 gpm.higher) Set the regulator to 50 psi static (no flow).

Get rid of the 'restrictor' in shower...either in end of hose or inside shower head handle. They limit flow to least than 2 gpm.