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fast380 01-12-2008 09:55 PM

3/4 " to small for main
I am doing a repipe, what a pain!!!! I couldn't find 1" flex to connect my water softener with and didn't want to hard pipe with no flex to the softener. So I am basically making my whole house go through 3/4" pipe. However, the softener itself really isn't 1" inside anyway, it is about 27/32, a little less than 7/8", and it has a little cross brace inside of that. So, what about 3/4 for the whole house, it should still be better than the old galvy that I have.......what a pain :censored: :censored: :furious:

Marlin 01-12-2008 10:45 PM

Go read the answers in your last posting of the same question...

jpplumber 01-13-2008 10:38 PM

The size of your main has to do with the incoming pressure, the size of the water meter, distance and rise of pipe and the number of fixture units in your house.

Ron The Plumber 01-14-2008 08:08 PM

Yes you have to know the codes in your area to decide how large the water service needs to be, we always run 1" even if it's not needed.

mikey48 01-14-2008 08:56 PM

Most homes in our area are 3/4 inch and then 1/2 inch to the sinks etc. I would use 1 inch to all the 1/2. With 3/4 inch you may get lower flow and when you flush the toilet the shower or faucet will change temp or will cause lower flow. Just my opinion.

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