water supply layout
I am an occaisional plumber and it has been a while... I am about to install a new water supply system in a mountain cabin. I have a 3/4 female threaded fitting coming off my well pressure tank. I want to run 3/4 supplies as much as possible to the 2 baths, kitchen, washer, and outside taps. Several questions: Should I run a single 3/4 pex over the water heater and T the water heater supply line down to the water heater or do it differently? Second, should I use the flex copper connectors to and from the water heater? Runs are fairly short and I like the idea of using a hot and cold manifold with home runs to the fixtures. of course no manifolds are for sale around here. Can I make my own maifolds with PEX fittings and cutoffs of willa 3/4 manifold not supply enought pressure?
many thanks, Bill
If you go with mainifolds, unless you have a high volume fill like a whirlpool tub, 1/2" will supply all you will need. If you go with out the manifold, sure, run 3/4" to the group, and split off with 1/2". Especially with the hot side....if you have a 3/4" pipe serving 3 fixtures in a manifold I will almost gaurantee you will be posting back wanting to know how to speed up the hot water delivery. If you have a run of decent length, there's many gallons of cold water to replace before the hot is available.
3/4" pipe will NOT increase or decrease pressure...it will affect volume.
Hope this get's you started...
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