I am planning to replumb my house with pex and have a question about pipe sizing. Coming into the house is 1 1/4" PVC, my thoughts were to tee off the 1 1/4" PVC to 2 3/4" pex pipes one hot and one cold. Would it be ok to run all 3/4" pex in the attic and drop down to 1/2" from the attic to the fixtures. Note there will be a kitchen sink, 4 toilets, 4 bathroom sinks, 3 showers, and a garden tub. I this a proper design, if not what would you do. I also plan to install a recirculating system. All suggestions are welcome.
Thanks playersc.
Thanks playersc.