Inquiry (采购产品): Repair kit The frost proof sill cock thats prevents back flow, the back flow valve alows water to come out of back flow valve when water is turned. Is this fixable or do I need to install a new sil cock? John Stuart **** Hidden Message ***** John Stuart 24 Old Mill Rd. 24 Old Mill rd. So. Berwick, ME 03908 USA Company: John Stuart - Carpenter Phone: 207-384-5511 E-mail: jwstuaart@comcast.net **** Hidden Message ***** jwstuaart@comcast.net