Water pump keeps cycling on.

[Hoohaa]

Originally Posted by TheBadger

I had same issue. It was the transom cold shower leaking. The water went overboard, no bilge water to see...

Checked, and unfortunately I couldn't find a leak in the deck wash.
Thanks for the idea.

[Hoohaa]

Originally Posted by Lepke

One way to fix is to put a check valve between pump and tank. Close to the pump is better.

I think this might be the simplest solution.
So, just install it inline between the tank and the pump?
Any suggestions on a good valve to use?

[Hoohaa]

OK. I think it's fixed!
Thanks Lepke and everyone else that's contributed.
I bought a check valve (one-way) between the tank and pump.
So far so good. So A marked improvement.
I've noticed a very small leak on the pump ( pressure) side of the valve. Needs a couple more turns.
Here's a pic.