Many people use a pressure regulator on the park water supply, EVERYBODY SHOULD, Many do
These regulators come in basically 4 types.
One common one sold in RV stores and departments is a brass or plastic cylinder, it is about the size of a female hose connector, has same (Female conector) on one end and a male connector (Threaded end) on the other, May or may not have adjustment or a gauge.. There is also a second one like it called a "High Flow" or High Capacity" like the above but either has a bright colored plastic "Grip" on the female end or in the case of Camco, wings on the body to enable you to hook it better to the hose.
THEY will cause the effect the O/P talked about, they do control max pressure but they do not have anythign close to the needed capacity. ONly one I have heard nice comments on was the camco and Frankly.. I do not agree with it's owner.
Next is the Sur-Flo (A Watts company) This is the one built into many RV's. When new I give it about an 8 or a 9, almost enough flow for a nice shower, at 7 years old however it is restricting flow too much, Needs a rebuild kit, nothing really wrong with it, just needs a rebuild kit. Diaphragm is getting stiff so it does not open fully.
Finally we have a host of companies, Valterra, Watts, Zurin and I am sure others, Save for the Valterra, which is designed for RV use, these usually come with pipe fittings not hose fittings. Mine (Watts and Zurin) are both 3/4 inch, The Watts has been damaged by frost and like the Sur-Flo sufferes from old age, The Zurin is brand new.
I hooked it up, set it to 50 PSI static, opened the outside shower wide, and observed the needle move... NOT ONE FRACTION OF A POUND.. stuck like it was glued there.
NOTE: Regulator should be first thing hooked to faucet, then hose, then filter, short hose and RV.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times
