Advice: Winterizing frost-free faucets

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Buffalo Hunter, Jul 8, 2008.

  1. Buffalo Hunter

    Buffalo Hunter New Member

    Jul 8, 2008
    I am going to replace my old sillcocks with frost-free ones. Do I still need to winterize them each year (turning off shut-off valve & leaving them open)?

    Also this website says that frost-proof sillcocks won't work in houses built on concrete slabs. Why is that?
  2. patrick88

    patrick88 Plumber

    Sep 3, 2007
    Webster Ma.
    Is your pipes going to be inside the slab?

    I would still install one. I don't take advise from any handyman. They know enough to get them selves into trouble. I know some are real good and do try to follow codes, but not many.

    If you install your sillcock right it will not freeze in the winter.
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  4. Buffalo Hunter

    Buffalo Hunter New Member

    Jul 8, 2008
    No pipe is 2" above slab
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    The whole idea with a frost free silcock is that the actual guts that shuts the water off is at the long end of the handle, way at the base. They comde in various lengths to accommodate different wall thicknesses. So, when you shut the water off, it is already way inside the wall so normally, an internal shutoff is not required. You MUST remove any hoses, so that the water left in the outer part of the valve can drain. The thing should be installed with a little slope to drain, but enough will to keep it from splitting unless it is sloped severely backwards towards the house.
  6. Gary Swart

    Gary Swart In the Trades

    Sep 1, 2004
    Yakima WA
    No winterizing as such needed, but do not leave a hose connected in the fall. If you do, the water will not drain out of the pipe and it will freeze and split the pipe. You won't even know it until you attempt to use the valve in the spring because a previously noted, the actual shut off occurs inside.
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