Quote:
Originally Posted by retiredguy123
You can replace the plastic main shutoff valve and the plastic push-pull valves with metal valves. But, you will still have a metal valve attached to a plastic pipe. Often, leaks that occur will be at the connection between the valve and the pipe, not within the valve itself. So, good luck.
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A leak is no more likely on a connection to a metal valve than a plastic one. In fact, the connection itself is plastic -- it's exactly the same, because the plastic connection is molded onto the metal valve, and that gets glued to the the pipe. Go look at one at Lowes, if you don't believe me. However, a leak is almost guaranteed on a plastic valve that's used all the time. And there's a very good chance that if you don't use it regularly, it will break when you actually do need to shut it off in an emergency. They're just junk, and need to be replaced.