Home>Discussions>PLUMBING>Replacing plumbing do I need to shut water off?
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clcatell
Replacing plumbing do I need to shut water off?

Hi, I bought a 1820 Farmhouse that had some pretty shifty work done on the plumbing. My question is when replacing the plumbing going out, do I have to turn off the water. I am not replacing the plumbing from the well to the sinks/tubs. And is it better to use 3" or 2" pipe. It is the correct plastic pipe now, but it is a 1/2" and is causing a backup in our dishwasher. The washing machine drain is 3", and goes to 1/2" to drain into the seperate water well/grey water. Our piping is shaped like a "V" forcing our washing machine, sink, and tub water to follow 1/2" pipes one way filling up our dishwasher, then comes back and goes out to the water well/grey water. This is the plumbing I am going to fix and make one long pipe and connect each item to it.

JLMCDANIEL
Re: Replacing plumbing do I need to shut water off?

I think you're talking about the drain lines and 2" is waht is required for modern washing machines.
Jack

clcatell
Re: Replacing plumbing do I need to shut water off?

Thank you!! Do I need to shut the water off?

JLMCDANIEL
Re: Replacing plumbing do I need to shut water off?

No, not to replace a drain line, just don't run the dishwasher, sink, or washing machine while it's disconnected.
Jack

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