Join Date: Oct 2015
Location: On a Boat
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Re: Stuck Thru Hull Valve - Help Wanted!
Despite the naysayers, it can easily be replaced while in the water. I did the exact thing two months ago with my cockpit drain valve. On mine, the handle literally had broken off, stuck open. I too thought it had to be pulled out, but a buddy told me it was easy to do in the slip - he had replaced his while on a passage to the Cook Islands last year.
The process was pretty simple - get the new valve prepped and ready to go and lay it right next to the through hull, disconnect the hose at the top clamp (where it is above the waterline), start unscrewing the valve. When the valve finally unscrews, put the palm of your hand over the through hull to stop water - you will maybe get 1/2 cup of water in your bilge, and no, there is not much pressure to the water coming out, you can easily put your hand on it. Grab the new valve, remove your hand and quickly put the other valve on and start screwing it in.
This worked great for me and I was amazed at how easy it was - got maybe 1/2 cup of water in the bilge throughout the whole procedure. I did have wooden plugs laid out, at the ready in case something would go wrong. I suppose if you think the old valve is worth rebuilding, you could simply buy a screw-on cap instead of a new valve, and cap it while you rebuild the valve, and then reinstall the valve using the same procedure.
I was glad to have learned this procedure.
Last edited by Lazerbrains; 02-09-2016 at 02:31 PM.