Have a FloJet (model 03526) water pump in my Cougar that is making a hissing noise and the pump won't shut off. And yes, before you ask, it's not a water leak hissing noise. It is an air hiss on the incoming hose of the pump. The pump keeps running and running and won't shut off. I replaced the 90" elbow that snaps to the pump and hose clamps to the input water line hose. This fixed the problem, yes fixed it, but it seems only temporarily. The hiss is back. What is going on here? How could the same part be bad after only 2-3 camping trips under my belt? I have inspected the incoming and outgoing hoses and no obvious tears or leaks were noted. Does the pump need to be replaced?
