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Old 26-11-2021, 10:29   #1
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Salt water galley pump

I'm thinking of installing a seperate pump in my galley. Is it not a good idea to "t" it off the same thru hull as the engine intake. Please respond
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Old 26-11-2021, 10:46   #2
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Re: Salt water galley pump

I did it once for an electric pulp. It seemed to gurgle and not provide as much water flow. Like bubbles of air were in the flow. I doubt your pump would suffer though. The potential risk is that somehow the check ball in the pump fails allowing the engine to suck some air in with the water. Would it do this? Not sure. Not even sure it would be a problem if it did....

I think it's easier to suck air than water, so maybe if the air is in the system it does that not drawing as much water as normal...
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Old 26-11-2021, 10:59   #3
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Re: Salt water galley pump

I wouldn’t t off the engine intake.

I also would install a foot pump before that flimsy little hand pump.
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Old 26-11-2021, 11:30   #4
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Re: Salt water galley pump

The problem is the possibility of a failure that will let the raw water pump on your engine suck air through the salt water pump. But then, all my salt water needs come in one seacock, which can be closed from the cabin above, and I consider that a safety feature.

So, I'm going to take a middle path on this question. Yes, you can do it, but use reinforced hose, good connectors, double hose clamps, and a good pressure pump. Turn the salt water on and off with a faucet, not by stopping the pump. Then, there is not a route for air into the engine's system.

That's all easier if you use a small electric pump, which will keep you from getting lazy and failing to close the faucet - it will keep right on pumping until you do. They do not use any of your limited energy budget when not in use, and not much during your brief needs for salt water.

Good luck with it.
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Old 26-11-2021, 11:42   #5
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Re: Salt water galley pump

I did once, mainly because the engine water intake was right under the galley sink. Never noticed a problem with flow to the engine, but the galley pump didn't work well when the engine was running. Barely a trickle. Worked fine with the engine off. It was a foot pump with two check valves inside, so virtually no chance of sucking air backwards through the pump. Another boat had an electric centrifugal seawater pump with it's own seacock, no check valves. That one would not have worked tee'd into another line because it would back feed air when the other pump was running.
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Old 26-11-2021, 12:30   #6
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Re: Salt water galley pump

The original flimsy hand pump lasted 40+ yrs I like it. The salt water pump will only be used on long offshore passages. The engine wont be running. The connection would be down low close to the seacock. I dont think air will be a problem. I guess I could put a valve on it. My main concern is the added joints and risk of failure and swamping the boat.
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Old 26-11-2021, 13:10   #7
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Re: Salt water galley pump

https://www.westmarine.com/buy/whale...7?recordNum=11 I think I like this one better. Better yet. Here is s metal one I took out of the head. I also thought i shouldnt connect to the engine intake. How about the seacock for the head
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Old 26-11-2021, 13:13   #8
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Re: Salt water galley pump

As others have said, leave the engine intake alone. The raw water supply to the engine needs to be super reliable.

A salt water foot pump in the galley is superior to a hand pump. Leaving both hands free sounds like a trivial difference, until you have used both offshore. Here a galley foot pump is better than any other option including electric alternatives.
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Old 26-11-2021, 13:39   #9
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Re: Salt water galley pump

Correction. I do have a foot pump and a single spout for the galley
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Old 26-11-2021, 13:54   #10
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Re: Salt water galley pump

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Originally Posted by JD-MDR View Post
Correction. I do have a foot pump and a single spout for the galley
I would install the same for the salt water.
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Old 26-11-2021, 14:11   #11
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Re: Salt water galley pump

But where to hook it up?? I dont want another hole in the boat. I didnt want to spend much labor or money. I guess I’ll jut keep a 2 gal bucket Only for washing dishes
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Old 26-11-2021, 14:27   #12
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Re: Salt water galley pump

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Originally Posted by JD-MDR View Post
But where to hook it up?? I dont want another hole in the boat.

I think an extra thru hull is better than trying to T off the engine intake.
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Old 26-11-2021, 14:33   #13
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Re: Salt water galley pump

[QUOTE=JD-MDR;3527158 I guess I’ll jut keep a 2 gal bucket Only for washing dishes[/QUOTE] I plan to leave mid February Mexico, Hawaii , Kodiak, then back to S. CA. Ill probably not need it again
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Old 27-11-2021, 02:37   #14
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Re: Salt water galley pump

Like everyone else has suggested do not T off the engine water intake.
As a alternative but requiring some opening and closing of valves you could use the sink drain and tee off it with a two way valve before the main stop valve on the hull. In this way you can close off the drain from the sink and re-direct the water that would be coming in the previous sink drain to the suction side of your foot pump. The disadvantage is you need to open and close the valve and also the sink will fill with salt water until you’re finished using the sea water pump.

As an even cheaper alternative you could just get a bucket of seawater at any time. No pumps plumbing or valving required
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Old 27-11-2021, 06:46   #15
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Re: Salt water galley pump

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Originally Posted by Sailmonkey View Post
I wouldn’t t off the engine intake.

I also would install a foot pump before that flimsy little hand pump.
I have a Fynspray as pictured that is over 20 years old and still working just fine. Has lasted longer than the two foot pumps on board. YMMV.
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