To the OP.
had the Forespar seacocks that I saw on one of Mainsails videos. Not the one he tested but the kind that he showed after the test. Sort of "cube" looking.
The first one I had to replace was the head
intake. The handle just fell off in my hand. And it was leaking. I found I could hold the handle to the seacock and get the teeth to engage enough to turn the ball to the off position. That generated a sigh of relief. They then sell you one at a discount if you call them. They are easy to replace because the handle has the little plug
you use to plug
the outside part on the hull
. Then you unscrew four screws, remove the working body, put the new one in place and replace the four screws. Simple. They won't sell just the working body part as they come "assembled and tested" with a tape tamper-seal. So you have to guess at the torque of the screws.
The second one I replaced mysteriously started to leak just a little bit where the handle inserts. It was a bigger one that had the lever to switch from sea water
to a hose adapter it has. Nice for fresh water
flush. I replaced the body on that one too. 35 min from first swim to last but that included a rinse with fresh and a quick dry while cussing about how cold the water was. The removed body was taken apart with nothing noticeably wrong. No gouges, cracks, scrapes etc. I re-assembled it and called it a spare.
Then I needed it.
I figured it out finally. If the engine
is running and you switch the lever from sea water to the fresh side there is a small period of time that the full suction of the motor
is applied to the exit side of the seacock. Somehow this must move one of the o'rings and allow a slow leak.
I replaced it with my "spare" and all was fine again. NOTE: I had to do this twice before I figured out what was the cause of the leak. It did not happen on just one flush/changeover. It could be on the fifth............or the tenth.
See, the last time was when I was showing the boat for sale
. It had sat for two weeks since the last prospective buyer. This guy raised the floor board and the bilge
had water in it - **** - a Gemini
(in perfect shape) has bone dry bilges. I explained I knew the cause. That worked.
Then he raised the floor board in the other hull
and found more water. I was beside myself with frustration. It turned out to be fresh from a loose hose clamp on the water heater. Both fixed in an hour or so. But the guy ( who knew he wanted a Gem) was long gone.
This is of course all anecdotal. And quite long............sorry. But it is CF
I would go with Bronze. The kind where it is all bronze and not the kind that have the nice ball that is turned by crap steel
handle and crap steel
nut that holds the handle and turns the ball........and rusts away to nothing.