[Alberg30] Replacing a seacock while afloat?

[George Dinwiddie]

Randy,

This was posted recently on the Atomic 4 list, copied from the Ranger list:
>Subject: Replacing seacocks
>
>I had a frozen (open) seacock installed in a Mickey Mouse setup.  I told 
>my slip neighbor that I was going to change it.  He asked which 
>shipyard.  I showed him how I use a soft rubber ball and some line to 
>accomplish the whole job from the inside. Perhaps some of the Ranger folks 
>know this, but if not, it is a good method to remember.
>I took off all the plumbing above the seacock.  A nipple and a hose were 
>attached to the seacock to bring the hose just above the waterline.  A 
>bolt was tied to some strong 1/8th. line and dropped down the hose, out 
>the seacock and into the water beneath the hull.  About 10 feet of 
>line.  Getting off the boat with a boathook, I captured the line and took 
>a fid and ran the same line, with the bolt removed, through the center of 
>the soft rubber ball and tied a stopper knot.  I added another section of 
>line, about ten feet, to the part extending through the ball.  That's in 
>case you pull the ball into the thru-hull, you can jerk it out.  When you 
>go back into the boat and pull up the ball, it acts as a plug.  You have 
>to fiddle a bit to finish up, but it will be easy.  The whole job took 
>about twenty minutes by myself.  If you have gate valves, this is one way 
>to replace them at minimum cost and effort, but whatever you do, get them 
>out of there!!  If you try this method, I would like to hear how it worked 
>out for you.  If you sink your boat, you didn't do it correctly.


> Randy Katz said:
> 
> Greetings, Sailors,
>     I find myself in an awkward position that I hope you can advise me on.
> While installing a new toilet/tank, the old gate valve SW inlet (Yes, I
> know-- it shouldn't be on the boat in the first place!)  seems to have
> broken in the open position.  Not a problem per se, but not a situation I'm
> keen to leave, either.
> 
>     I'm considering installing a Forespar Marlon replacement.  The question
> is-- how difficult would this be while the boat is in the water?  I imagine
> trying this with the new valve in the open position, attached to a length of
> hose extending above the water line-- wouldn't that lessen the incoming
> water pressure a bit?
> 
>     I don't mind taking on a gallon or two of water in order to avoid a haul
> out.   I figure I can get the teflon tape wrapped on the through-hull in the
> process, thanks to a bung plug.
> 
>     An alternative is leaving the gate valve until next March's haulout--
> it's double clamped and seems sturdy enough otherwise.
> 
>     ANy of you wise people have experience with this sort of nonsense?  I'd
> love to hear from you.

-- 
 ----------------------------------------------------------------------
  George Dinwiddie                             gdinwiddie at alberg30.org
  The gods do not deduct from man's allotted span those hours spent in
  sailing.                                    http://www.Alberg30.org/
 ----------------------------------------------------------------------

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