Flojet 4405-143 Leak Problem in caravan

Submitted: Friday, Sep 02, 2011 at 18:51
ThreadID: 88807 Views:7087 Replies:9 FollowUps:9
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Both pressurised town water and water from our water tanks flows through the 12v pump (not at the same time). When it is turned on and pumping from the tanks (free camps) there is no problem, plenty of pressure and no leaks. However when we hook the hose up to town water in a van park, the pump leaks - the pump is not on in this situation but water flows through it. I think it has some sort of bypass on it but I am no expert.

The pump manual says that the pressure switch max for the pump is 35psi.

Has anyone had experience with this pump? Is the pump faulty? I have tried fitting in-line pressure regulators onto the hose (20psi Bunnings) but it still leaks. I have tried some 15psi pressure regulators and they work and stop the leaks but the water pressure is only a dribble.

This is driving me crazy.......................... HELP!!!

The van is about 10 years old.
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