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Old 05-12-2010, 04:28 PM   #1
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What Pipe to Use


I am going to replace all the hot and cold water lines in my house which is 30 years old. It has copper now so what should I use to replace it with. Should I stay with Copper or use Pex. What size would you recommend 1/2" or 3/4" or a combination of both.

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Old 05-12-2010, 05:19 PM   #2
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What Pipe to Use


why are you replacing 30 yr old copper? pex is obviosly the cheapest way to go but if the house is not too big with alot of piping coppers the better choice in my opinion

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Old 05-12-2010, 06:36 PM   #3
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What Pipe to Use


combination.

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Old 05-12-2010, 07:12 PM   #4
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What Pipe to Use


I am on a well and the water is very hard. I just bought the house about 8 months ago and the water softener has not worked for some time. There is no large amount of iron mostly calcium and there is a large build up of deposit in the lines. I have had to do some repairs already. I am installing a new softener so build up should be not a problem. I know Pex is cheaper but if copper is better thats what I may go with.

combination.

When you say combination what do you mean? What part Copper and what part Pex?
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Old 05-12-2010, 08:06 PM   #5
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What Pipe to Use


1/2" & 3/4"

3/4" main, 1/2" off to sinks, etc.

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Old 05-12-2010, 08:34 PM   #6
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What Pipe to Use


Quote:
Originally Posted by DangerMouse View Post
1/2" & 3/4"

3/4" main, 1/2" off to sinks, etc.

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Yes I was going to do that but are you also suggesting a combination of Pex and Copper and if so where would you use each product?
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Old 05-12-2010, 08:45 PM   #7
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What Pipe to Use


If you are not having any pressure issues like pressure drops when toilet is flushed then when you replace a 1/2 copper use 1/2 pex, 3/4 copper use 3/4 pex

If you have pressure issues then you may want to resize you home

Also if you have hard water try and use as little fittings as you can. The brass fittings can corrode.

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