I just bought a house built in 1984 it has PEX plumbing. I need to remove a toilet to install a new floor and I noticed the water supply line to the toilet connects to a water shut off valve that I’ve never seen before. It looks like a PVC bonnet or nut cap thing With a half crescent ring that you turn left or right to turn the water on or off.

Are these reliable or should I replace with a quarter turn ball valve. I really don’t want to do anything unnecessary but a PVC shut off valve gives me anxiety as an inexperienced DIY homeowner


  • 8
    Does this answer your question? PEX Line Toilet Water Supply Disconnect
    – Solar Mike
    Feb 5, 2020 at 12:56
  • @solar mike , Since it is the same OP asking the question I do not think it is helpful.
    – Ed Beal
    Feb 5, 2020 at 15:50
  • 1
    @EdBeal perhaps it would have been better to improve / edit the original question, seems 3 agree...
    – Solar Mike
    Feb 5, 2020 at 15:55
  • Probably those that did not take the time to read both and 4 VTC.
    – Ed Beal
    Feb 5, 2020 at 19:52


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