Water pressure gauge

[Busdriver]

Have a grand design 303 RLS fith wheel what should the water pressure gauge be set at. Has plex lines

[ford_truck_guy]

I have my Watts 263 adjustable set to 55.. not a problem.. Like stated.. the lines can handle much more, it's the connections that will fail.

[Cummins12V98]

I have ran 60psi with a quality watts regulator full time for 5 years.

[Dave_H_M]

yep, I am a 45psi guy also

[RobWNY]

I'm in agreement also. We set ours at 45 PSI. Plenty of pressure and no leaks.

[naturist]

MFL wrote:
Pex itself can handle more pressure, but taking into account the fittings and clamps, I'd set for around 50 psi. Many pumps give 40-50 psi, not many much higher, so may be considered a safe psi indicator.

Jerry

This. My TT, which does not necessarily have the same limitations as yours, clearly says in the owner's manual, that 80 PSI is the absolute max it will tolerate. 45-50 psi, is a good safety margin, and is a range that household systems commonly operate. That's where my regulator is set, and you likely can't go wrong at that.

[MFL]

Pex itself can handle more pressure, but taking into account the fittings and clamps, I'd set for around 50 psi. Many pumps give 40-50 psi, not many much higher, so may be considered a safe psi indicator.

Jerry