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Old 05-29-2005
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Siphon through Sink?

OK, this is probably the most basic question. AND my boat has a warning sticker against it.

I sailed today without closing the seacock under the kitchen sink on a long reach with that side under water. I put about a foot of water in the bilge and soaked everything under the sink.
I know the water came in through there but DID NOT come up and out the sink. So what happened. Back in the harbor the seacock is not leaking and never has when something is put down the sink.
Once I pumped the bilge out everything seems fine.
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Old 06-01-2005
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Siphon through Sink?


The answer depends on how your plumbing is connected. If you had a simple hose connecting your sink drain to the through hull positioned so that with the boat at rest it is just above the waterline, the water would have come up through the sink. Presumably you have some sort of overflow "holding" tank for water to run into when the seacock is closed. If water came in through the seacock when open it probably went into and overflowed this holding tank/compartment and ended up in the bilge. Either that or you have a leak between the seacock and the sink that the water came out of.
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