We always use a pressure regulator...Watts adjustable set for 50#
Water pressure wasn't our problem!
Leak occurred when we were IN the rig.....sleeping. Happened on city water but could have as easily happened on pump.
Point is.......leak happened due to a hose clamp that got loose...line blew off and water ran for hours during the dark of night.
Whether you turn water OFF or not.........check the plumbing for use of ANY hose clamps.....especially on pump. Make sure they are tight and stay tight (Locktite if necessary) But better yet...get rid of them and use better means of connection ie: Sharkbite fittings
Waking up to your own wading pool is NOT a fun way to spend your RV'ng time.