Larry wrote:
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?!



The "bilge" line is there only for winterizing the engine and is isolate
by a valve.

The galley line is also isolated by its own valve.

I had considered that I might be getting air into the engine line from
the galley, although I have had the galley working in tandem with the
engine. Probably no more.

None the less, during the most recent episode I shut off all the
"taps/valves" so that the engine was drawing ONLY from the bucket of
anti-freeze. With no success.

Now that you have me thinking about it, I wonder if the strainer had
gotten air in it? I don't know.

Thanks for the response.

hpeer wrote in news:494ecf5f$0$5535
:

Now that you have me thinking about it, I wonder if the strainer had
gotten air in it? I don't know.

Thanks for the response.



Isn't the seawater pump under the waterline? Is there anywhere in the
hoses leading to the seawater pump that's above the waterline from the thru
hull fitting? That would keep it from priming properly and might get an
air bubble trap that can't be overcome.

If the thru hull valve is open, and I pull off the hose from the seawater
pump, I wanna see seawater come gushing out of that hose, unattended. See
if yours does it. I want the strainer underwater, too. Damned air
conditioner installed in Geoffrey's old Endeavour sloop used to lose its
cooling water prime because of where the idiots mounted the strainer. I
moved it all under the waterline...problem solved. Pull off any hose and
prepare to be DROWNED.