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Old 27-08-2013, 17:33   #1
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Tapping into engine cooling water line for galley

We are installing a salt water faucet at the galley to help preserve our limited fresh water supply.
Iím not a fan of drilling any more holes in the boat than I have to, especially below the waterline
I am therefore considering tapping into the cooling water">engine cooling water line by insering a t-piece just behind the inlet ball valve.

The salt water pump is a simple manually operated (foot pump) so the draw is negligible, so I am not worried about ďstarvingĒ the supply to the engine.
I am concerned, however, that I may introduce a way to suck air into the engine cooling water (although the engine is fresh-water cooled via a heat exchanger).
If I put a ball valve in the line to the pump, will the system be ok, or am I taking too much of a risk tapping off the engine cooling water?

Thanks for your advice.
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Old 27-08-2013, 17:37   #2
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Re: Tapping into engine cooling water line for galley

Hi,

Jim took the sea water for I-1 from the salt water intake for the engine. Did not affect flow to engine. Worked fine for years, and made salt water dishwashing a piece of cake.

Ann
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Old 27-08-2013, 20:24   #3
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Re: Tapping into engine cooling water line for galley

I don't think you would have a problem. There are two check valves in the pump that should prevent any air from getting back into the engine intake.
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Old 30-08-2013, 05:42   #4
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Re: Tapping into engine cooling water line for galley

Don't like more holes in the hull either, so we replaced salt water foot pump thru hull with a keel cooler for our new Frigoboat refrigeration. Swabbie says a bucket with a rope on the handle gets her all the salt water she needs, and it has no chance of interfering with the engine.
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