Join Date: Nov 2009
Thanked 105 Times in 96 Posts
Rep Power: 7
Re: Replacing stand pipes with thru hulls / seacocks
Actually, I believe that our standpipes are metal pipes that are glassed into the hull. They are completely encased in fiberglass, so you don't see the metal.
To add a ball valve, you'd have to grind away the fiberglass at the top of the pipe to see if it's threaded to accept a ball valve.
1981 Tartan 33 #168