Pipe sizing to sub-manifolds
I’m planning two sub-manifolds for the house I am currently renovating. One will supply the plumbing core of the house – the kitchen, guest bath and laundry room which are adjacent to each other and the other will supply the master bath and adjacent plant room.
My question is how should I size the pipe from the main manifold adjacent to the hot water heater in the basement to the two sub-manifolds? The water heater will be ~20′ from the plumbing core and ~35′ from the master bath. I’m planning to use PEX A, so will not lose capacity through the fittings.
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