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            DIY Message Boards  Hop To Forum Categories  Home Improvement  Hop To Forums  Plumbing    replacing toilet shut-off valve
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        replacing toilet shut-off valve Sign In/Join 
        posted
        How exactly is a toilet shut-off valve replaced when the incoming water pipe is plastic? I don't really trust this plastic plumbing, but it's what I'm stuck with. I don't see quite how the valve can be removed without just cutting the pipe where it connects to the valve.
        I'm curious about what to do if the length of pipe coming from the wall is just too short?
        I'm calling a plumber, but I just wanted some feedback from anyone who has done this.
         
        Posts: 41 | Registered: Aug 31, 2004Reply With QuoteReport This Post
        Picture of Jaybee
        posted Hide Post
        A few variations depending on how the valve is attached to what kind of plastic.

        In all cases, you will have to turn the water off to the entire house at the main valve or meter. Then, some shut-off valves use a nut with a compression ring at the bottom - if that's the case then you can simply unscrew the valve from this nut and thread on the new valve.

        If it's a Pex or other type crimp fitting, then there could be a problem with having enough exposed pipe as the old valve will have to be cut off.

        since you are bringing in a plumber, he will know how to deal with it.


        Jaybee
         
        Posts: 10088 | Location: Knoxville, Tennessee | Registered: Sep 27, 2003Reply With QuoteReport This Post
        Picture of joecaption
        posted Hide Post
        What color is the pipe?
        Only one I would worry about is if it's Gray.
        That would mean it's Quest, which really should have been replaced long ago.
        There was class action sutes years ago about it.


        joecaption
         
        Posts: 17984 | Location: Hartfield VA | Registered: Jan 31, 2004Reply With QuoteReport This Post
        posted Hide Post
        The pipes throughout the house are a beige color plastic. I would say PVC, but I don't know if that's the correct term.
         
        Posts: 41 | Registered: Aug 31, 2004Reply With QuoteReport This Post
        Picture of joecaption
        posted Hide Post
        Nope, it's cpvc. It's fine to use.
        PVC should never be used as a supply line inside a home. Only drain lines.


        joecaption
         
        Posts: 17984 | Location: Hartfield VA | Registered: Jan 31, 2004Reply With QuoteReport This Post
        posted Hide Post
        Thanks for the info. I did not know there was such a thing as CPVC.
         
        Posts: 41 | Registered: Aug 31, 2004Reply With QuoteReport This Post
        Picture of Frodo
        posted Hide Post
        cpvc is mainly used on hot water piping. pvc will melt

        if its cpvc, the valve is either glued on or threaded on. if glued, buy another valve, take the guts out and replace the old guts with new. or cut te pipe and install a male adapter and a threaded valve
        you ned to use cpvc glue. pvc glue will not work

        turn off water and drain the system fitrst!!!!!!!!!!!!!!

        This message has been edited. Last edited by: Frodo,


        https://www.youtube.com/*****?v=vn7bkncf1_E
         
        Posts: 3843 | Location: I live in southern mississippi | Registered: Jun 01, 2008Reply With QuoteReport This Post
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