How to plumb a washdown pump on a 40 ft sailboat? - SailNet Community
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post #1 of 21 Old 12-29-2014 Thread Starter
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How to plumb a washdown pump on a 40 ft sailboat?

Santa, generous as she is, gave ma a West Marine washdown pump kit. I guess, me bitching about using a bucket to rinse the anchor chain paid off....
Now, how do I plumb it?
Easiest would be to install the pump somewhere forward and use fresh water from the tank under V berth. Dont like the idea of using fresh water though.
Install a through hull and seacock seems a lot of effort.
Leaving the pump portable, toss an intake hose overboard and unplug/store the pump seems like a lot of work also.

What to do?

Thanks,
Neal
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post #2 of 21 Old 12-29-2014
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Re: How to plumb a washdown pump on a 40 ft sailboat?

I wouldn't want to use fresh water either..

What's the boat arrangement? is there a head intake or sink drain nearby that you could 'T' into?

Ron

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post #3 of 21 Old 12-29-2014 Thread Starter
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Re: How to plumb a washdown pump on a 40 ft sailboat?

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I wouldn't want to use fresh water either..

What's the boat arrangement? is there a head intake or sink drain nearby that you could 'T' into?
Good idea using the head intake.... I like that a lot! There is also room for the pump under the sink.
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post #4 of 21 Old 12-30-2014
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Re: How to plumb a washdown pump on a 40 ft sailboat?

Tee into raw water intake and install and plumb into a hosebib fitting on deck to hook a garden hose to easy peasy

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post #5 of 21 Old 12-30-2014
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Re: How to plumb a washdown pump on a 40 ft sailboat?

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Tee into raw water intake and install and plumb into a hosebib fitting on deck to hook a garden hose to easy peasy
If you are talking about the raw water intake for the engine, that might not be a good idea if you want to run the engine and wash the chain at the same time unless your intake is significantly bigger than necessary.
The head might work out or it might put a lot of back pressure on the head's intake system??? Do you have any sink drains that come out below the water line?
A dedicated thruhull would be the way to go when next you haul, and until then the overboard pick up you mentioned might do for a while.

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post #6 of 21 Old 12-30-2014
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Re: How to plumb a washdown pump on a 40 ft sailboat?

I like the idea of sharing an intake thru hull, if you can manage issues raised above. Most, however, are dedicated, which lowers distance and resistance.

My caution would be the pump itself. Most just don't have the power to do a good job and are more trouble than they're worth. You need one to run like a garden hose off the dock to get mud off the chain and anchor. Many trickle and some you can even sense the pump cycle. Hope Santa brought a good one.


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post #7 of 21 Old 12-30-2014
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Re: How to plumb a washdown pump on a 40 ft sailboat?

If the head is forward "T" the intake at the seacock for the pump. Nothing wrong with a T in an intake but I wouldn't use the engine intake.

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post #8 of 21 Old 12-30-2014
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Re: How to plumb a washdown pump on a 40 ft sailboat?

I'm going to connect my washdown pump to the current head sink drain line. But first I'm going to combine the head intake and sink drain into one so that I can flush the head with fresh water.

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Re: How to plumb a washdown pump on a 40 ft sailboat?

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Originally Posted by Don0190 View Post
I'm going to connect my washdown pump to the current head sink drain line. But first I'm going to combine the head intake and sink drain into one so that I can flush the head with fresh water.
I'm not following. Assuming your sink drain is even below the waterline, the air gap back up to the sink would seem to prevent suction.


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post #10 of 21 Old 12-30-2014
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Re: How to plumb a washdown pump on a 40 ft sailboat?

i plan on making one with an attached hoses so i can place hose in water below my boat and use for raising anchor. then i can relocate it later as it is portable.shoud be easy enough.
not permanently added and portable


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