Re: Water pipe size
- From: clewis@xxxxxxxxxxxxxxxxxx (Chris Lewis)
- Date: Tue, 02 Aug 2005 20:48:07 -0000
According to PipeDown <nowhere@xxxxxxxxxxxxx>:
> This plan requires that I transition the hot from 1/2" galv to 3/4" CU for
> the hot water. My question is "will this create a pressure or flow rate
> problem?" Normally you go from big to small pipe but in this case it is
> from small to big.
Knowing how iron/galv pipe ages, its effective size is probably considerably
smaller than 1/2" CU.
Going from small to big won't cause much of a problem, aside from a "if
you draw too much from one faucet, you might suck air in another"
factor.
[For the most part assuming both faucets are on the same 3/4" CU leg.]
In other words, the upstream flow restriction will reduce the systems
inherent ability to balance multiple demands on the downstream ends.
However, since your plan is ultimately to replace all of the old
plumbing in the house, and your plan (3/4" to the last division before
the fixtures) is the _right_ way to do things, you should be able to
live with the potentially sucky bits ;-)
I'd recommend staying with your planned 3/4" CU.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.
.
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