sink drain ?

Southron Spirit · #1 (**permalink**) 12-05-2011

is the sink drain shut off valve on everyones boat on the bottom of the hull.
i was trying to figure out why there was a valve in the open positon with a hose on it ,traced it back to the sink .

the sink is to small to wash anything in anyway ,im going to use a rubber basin . i closed the valve and as soon as i can im going to remove the hose and screw a plug into that valve .

why didnt they just have it empty into the cockpit drain hoses
has anyone sealed that hole in the hull permanently ?

DRFerron · #2 (**permalink**) 12-05-2011

Are you referring to a galley sink or the sink in a head? The location of the valve will depend on the boat and if the previous owners made any modifications.

On our boat the galley sink drains directly out of the boat using a dedicated opening in the hull. There is a shut off valve located under the sink beneath the galley counter. Our sink in the head ties into the line that draws water into the head. If we close that seacock, the sink does not drain or any water in it will be drawn into the head when pumped.

I don't ever remember seeing a valve on the hull of a boat.

Southron Spirit · #3 (**permalink**) 12-05-2011

this valve comes out right next to the keel the other end leads to the sink where you are suppose to wash dishes but its so small you could probally only wash cups and silver ware . , the hose on the top left is for the swing keel cable.

JiffyLube · #4 (**permalink**) 12-06-2011

On our boat every line that goes to a through hull, has a valve that can be closed...even through hulls above the water line. Our head sink drains above the water line, and the galley sink drains below the water line.

makenmend · #5 (**permalink**) 12-06-2011

On my NA 23' there is no such hull valve. Only through hull opening I have are 1. below waterline for speed sensor
2.cockpit drains above waterline.

windyway · #6 (**permalink**) 12-15-2011

My 79 has exactly the same hull fitting in the same place.

GoodOldBoater · #7 (**permalink**) 12-16-2011

I replaced my thru hull sink drain - same location as well.

JiffyLube · #8 (**permalink**) 12-17-2011

I've been thinking about our galley sink through hull, and wonder why it's below the water line. I'd think it would drain better above the water line.