[jclark003]

At the risk of stating the obvious make sure the dockside water is turned off while away from boat. A small leak can turn into a big leak and in the case of city water pressure, quickly overwhelm a bilge pump.

FWIW I had similar symptoms that turned out to be the connection between regulator and FW system/plumbing. FW pump didn't generate enough pressure to cause it to leak but when on dockside water it sprayed pretty good. Now I use an automatic regulator that needs to be reset every 200 gallons. If I break a hose in the boat that is the limit to how much water can enter.