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Author:
joelabel (CA)
I've inherited a bathroom construction project and have an American Standard flushvalve floor mounted toilet connected to a 1/2" supply. I know this requires a 1" supply, however if it would work, it would be much easier at this point to bring an additional 1/2" supply from a different line.
So here is my question, would I get he equivalent pressure from two 1/2" supplies as I would from one 1" supply?
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Author:
m & m (MD)
No, it may take as many as four 1/2" diameters.
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Author:
hj (AZ)
Pressure is one thing, but you need volume also and you would need FIVE 1/2", coming from different sources, lines to equal a 1" one.
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Author:
Wheelchair (IL)
While it may seem logical that you only need 2...... 1/2 inch pipes to = 1 inch pipe, that would be wrong. It may take some time and lots of money to prove you wrong, but I am hoping to save you that expense and time.
Best Wishes
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Author:
bernabeu (SC)
The (comparative) area of two circles is DIRECTLY proportional to the square(s) of their diameter(s).
eg.
4" pipe = 4x4 = 16
2" pipe = 2x2 = 4
16/4 = 4
it would take 4 - 2" pipes to equal 1 - 4" pipe
this does not account for 'nominal'sizing, nor for 'friction losses
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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
hj (AZ)
Which is why you would need at least a fifth pipe.
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Author:
bernabeu (SC)
1/2 x 1/2 = 1/4
1 x 1 = 1
1/.25 = 4
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
hj (AZ)
You are just using the basic area, but are NOT compensating for the additional pressure/friction loss due to DOUBLE the wall surface.
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