Garfield

05-17-2011, 06:26 PM

Hello all, this is my first post here.

I am doing a gut/remodel of a house built in 1942 or so. I have ripped out all the galvanized supply piping and will replace it with PEX.

The water supply into the house and out of the meter is brand new 3/4" copper. My manifolds have 1" input and 1/2" valve outputs (10 hot/12 cold.)

Which makes more sense:(from a flow point of view-not cost)

A) put a 3/4 x 1 coupling at the meter outlet and run 1" to the manifold?

B) Run 3/4" from the meter output to the manifold, and put a 3/4 x 1 coupling into the manifold's 1" input?

Total length of meter to manifold is maybe 25' or so. So in A above I'd have 25' of 1", and in B I'd have 25' of 3/4".

But in any case, the restriction is at the meter where it is 3/4". It's city water with good pressure (not measured, though.) To me it seems like six of one, half dozen of the other.

Thanks for any help.

Garfield

I am doing a gut/remodel of a house built in 1942 or so. I have ripped out all the galvanized supply piping and will replace it with PEX.

The water supply into the house and out of the meter is brand new 3/4" copper. My manifolds have 1" input and 1/2" valve outputs (10 hot/12 cold.)

Which makes more sense:(from a flow point of view-not cost)

A) put a 3/4 x 1 coupling at the meter outlet and run 1" to the manifold?

B) Run 3/4" from the meter output to the manifold, and put a 3/4 x 1 coupling into the manifold's 1" input?

Total length of meter to manifold is maybe 25' or so. So in A above I'd have 25' of 1", and in B I'd have 25' of 3/4".

But in any case, the restriction is at the meter where it is 3/4". It's city water with good pressure (not measured, though.) To me it seems like six of one, half dozen of the other.

Thanks for any help.

Garfield