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  1. #11
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    Pleeeease don't forget to let us know what happens. You could become a forum hero if you play this right
    Boaty junk clogging up your shed or lockers? Chuck it in http://groups.yahoo.com/group/Marinaskip

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  2. #12
    peterb is offline Registered User
    Location : Radlett, Herts
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    Leave it for as long as possible (several days) before releasing the pipe. There is usually sufficient seepage round the pipe to allow the pressure to drop.

  3. #13
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    Aug 2007
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    Quote Originally Posted by peterb View Post
    Leave it for as long as possible (several days) before releasing the pipe. There is usually sufficient seepage round the pipe to allow the pressure to drop.
    Spoilsport.

  4. #14
    saltylegs is offline Registered User
    Location : Strangford Northern Ireland
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    Quote Originally Posted by vyv_cox View Post
    Are you sure that turning the handle is actually turning the ball? It is quite common for the stem to corrode away so that it isn't.
    As Vyv says, but I think he means that the handle may be worn away, can you remove the handle and get a small spanner (my guess is 6 or 8mm) or a shifter on it and make sure it is actually turning?

  5. #15
    Join Date
    Aug 2008
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    Quote Originally Posted by saltylegs View Post
    As Vyv says, but I think he means that the handle may be worn away, can you remove the handle and get a small spanner (my guess is 6 or 8mm) or a shifter on it and make sure it is actually turning?
    You can't even rely on that test. I had one where the handle turned the shaft, with a sensible amount of resistance, but it didn't turn the ball. The shaft to ball connection was broken inside the valve. (This on a boat I had just bought and the survey said "all seacocks operate satisfactorily.")

  6. #16
    vyv_cox's Avatar
    vyv_cox is offline Registered User
    Location : North Wales, sailing Aegean Sea or Menai Strait
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    Quote Originally Posted by saltylegs View Post
    As Vyv says, but I think he means that the handle may be worn away, can you remove the handle and get a small spanner (my guess is 6 or 8mm) or a shifter on it and make sure it is actually turning?
    When I wrote 'stem' I didn't mean 'handle' The connection between the stem and ball is a small squared end that can suffer dezincification and become rounded.
    Answers to some technical queries at http://coxengineering.sharepoint.com

  7. #17
    Join Date
    Aug 2003
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    Thanks everyone for all the answers as pvb said it wasn't as exciting or hard as it could have been. By working the diverter valve backwards and forwards a few times, it released any pressure in the outlet. It turned out to be a blockage in the stop cock after the ball valve, so with a length of 1.5 in tube to act as a coffer dam I could open the valve and poke the blockage out from the inside. Problem solved!!

  8. #18
    Join Date
    Oct 2006
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    Thanks for the feedback, but you really didn't make as much of a story out of the event as you could!
    Boaty junk clogging up your shed or lockers? Chuck it in http://groups.yahoo.com/group/Marinaskip

    Want a used bike, spares or repairs in Staffordshire? Visit http://back2bikes.org.uk/

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