I am planning my supply runs and I have heard differing accounts on what size pex to run.

I have 1" copper coming into the house from a 1" meter. I am unsure of what kind of pressure to expect. The meter is around 500' away with about 150' elevation rise to the house.

I was planning on running a Trunk/branch type plan. with 2 main 1" trunk lines. Here are the fixtures and pex sizes I plan on running.

Bath 1/Kitchen (they have a shared wall) - 1" trunk line T'd off main branch:

Vanity - 1/2"

Toilet - 1/2"

Tub/shower combo - 3/4"

Kitchen Sink - 1/2"

Ice Maker - 1/2"

Dishwasher (supplied off the kitchen sink line?)

Hot/Cold outside house bib - 3/4"

Master Bath - 1" trunk line (main branch):

vanity x 2 - 1/2"

toilet - 1/2"

Steam generator - 1/2"

Shower - 3/4"

Soaker Bath - 3/4"

Hand held for bath - 3/4"

Other fixtures running off main branch -

hosebibs x 2 - 3/4"

Utility Sink - 1/2"

Washer - 1/2"

Does this setup sound ok? I have heard 3/4" trunk lines should be ok, but I also have folks telling me that I should use 1" to be on the safe side.

Should I run the hot side as 1" also or 3/4"? I was assuming I would use 1" also out of the water heater.

thanks,

michael

ps. I am not against I recirculating system for the hot water side, if it is simple to do.