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Old 04-21-2016, 08:41 PM   #1
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1/2" supply - any reason for 3/4" manifold?


I have a 1/2" water supply from the city. I'm redoing some plumbing fixtures in my home. Is there any reason to go with a 3/4" manifold?
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Old 04-22-2016, 01:02 AM   #2
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Re: 1/2" supply - any reason for 3/4" manifold?


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Originally Posted by RCGA View Post
I have a 1/2" water supply from the city. I'm redoing some plumbing fixtures in my home. Is there any reason to go with a 3/4" manifold?
You need all the help you can get. The 3/4" manifold will cause less friction loss. What is the pressure at the meter and how long is the run. These things work together to create a viable system however a larger main coming from the meter would work much better to give you volume and more pressure when you turn on your faucets.
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Old 04-22-2016, 06:41 AM   #3
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Re: 1/2" supply - any reason for 3/4" manifold?


Anyone else ever seen just a 1/2" main line supply?
That just sounds wrong to me.
There would not be enough volume at any pressure.
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Old 04-22-2016, 08:45 AM   #4
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Re: 1/2" supply - any reason for 3/4" manifold?


Usually main is 3/4 or 1 inch coming into house. Have seen them reduced to 1/2 inch right after water meter. Check and see. Post a pic when you can.

If thats the case, as mentioned above, you'll need all the help you can get.
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Old 04-22-2016, 09:16 AM   #5
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Re: 1/2" supply - any reason for 3/4" manifold?


Water supply is on the far right

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Old 04-22-2016, 11:44 AM   #6
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Re: 1/2" supply - any reason for 3/4" manifold?


Can't really tell from the pic, as its just out of frame, need close up of where main actually comes in. Looks like it was reduced to 1/2in somewhere.
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