You are not logged in.

Dear visitor, welcome to SPRINKLER TALK FORUM - You Got Questions, We've Got Answers. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.


Sunday, March 17th 2013, 5:20pm

PSI and GPM questions

I bought an Orbits pressure gauge at Menards and it is actually reading about 4 or 5 psi higher at the hose bib than the city said our static pressure is. I am assuming I should just use the lower one supplied by the city.I did the bucket test and came up with just over 10 gpm. However, if I use the calculator on irrigation tutorial I come up with 18 gpm (1" copper pipe). Not sure if the 5/8 water meter is affecting it.


Supreme Member

Posts: 5,294

Location: Metro NYC


Sunday, March 17th 2013, 7:16pm

Any pressure gauge has an accuracy error. Figure at least 3 percent of the highest number on the scale.

Similar threads

Rate this thread