Thats where I was coming from George. I've seen plenty of PEX manifolds for
regular homes and all of them had 1/2" runs to the risers. Seems to work
well since most of the faucets etc are actually fed by 3/8" pipe anyway
I'll bet they work better with bigger pipes.
The minimum requirement for Windows XP is 128mb ram, 1.5 gigabytes
(GB) of available hard disk space, try that some time.
The minimum requirement for sky diving is a paper towel with 4 strings
tied to the corners.
No...bigger is NOT always better.
In most residential installations 1/2" is just fine, larger tubing &
the associated fittings are more expensive.
In fact using larger diameter tubing than necessary will only increase
hot water wait time.
OP - Short answer about 3/4" PEX, dont use it .... not necessary.
Long answer - unless you have an unusual installation or
requirements OR are doing a branch & main installation, I do not
see the need for 3/4" PEX.
IMO the best PEX system is Wirsbo tubing & expander type connections
and home run installation with copper valved manifolds, all 1/2"
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