Max pressure in an RV shouldn't exceed 50 psi. Many RVr's use a pressure regulator when hooked to outside sources, just to make sure that surges, etc. don't cause leaks or failures.
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter