hpeer wrote in news:494e6e63$0$5528
:

The plumbing goes like this:
Through hull fitting
Salt water strainer
Tap to the transmission/engine
Tap to secondary pick up from bilge
Tap to sinks



Are you telling us there's ONE thru hull fitting feeding water to the
engine while the sink and bilge pump use it to pump water overboard??

That's so incredibly stupid I'm amazed the engine survived!

The engine pulls on its tit. The suction pulls on the sink and bilge pump
line and SUCKS AIR so the engine doesn't get cooling water.

Please tell me it's not installed this stupidly! Please?!