I have 70 measured psi of water coming into my house. I would like to know the formulas for determining pressure and flow rates downstream thru various diameters of pex tubing. Would someone tell me were to find this info? Thanks a lot!!
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The text on my bookshelf for this and other flow questions is
"Fluid Mechanics", V.L Streeter, McGraw-Hill, 1962 (dates me , don't it?)
Your local library should have something similar.
For relatively easy to use charts and tables, try "Std Handbook of Engineering Calc", T.G. Hicks, McGraw Hill, 1972.
Again, your library or many sites on the web will have similar, search for "fluid flow" "Reynolds number" "piping loss", etc on Google or similar.
You have one good lead for a book, and I'm sure you will get others.
In the mean time... Here is some things to think about:
Is that 70 PSI before of after the pressure reducer/regulator? If it is after the regulator, that is kind of high - may cause problems. Just as important, what is the diameter and length of the pipe that goes from the water meter to your house (assuming city water).
RE Pex pipe diameters we have discussed that some Pex manufacturers say 3/8 or 1/4" Pex is OK for you in some situations. Do a search here at BT.
I think you already know this, based on your question, but here is something my plumber told me: generally an icemaker line for a fridge is going to have the same water pressure available at the outlet as other plumbing fixtures throughout the house, but is the water that comes out of an icemaker line going to be enough to take a shower in?
No answers necessary to my Qs...
appreciate the info.