Quote:
Originally Posted by RNajarian
I am hooked up to city water, pressure from the street is 150 PSI
The inspector wouldn’t sign off on the installation until we put this sign by the PRV
FIRE SPRINKLER PRV
Do Not Adjust
Must Be 100 PSI Min
I did some research and saw this model of sprinkler head is rated at 175 PSI, so I may be OK at 150. It bothers me that this system can’t maintain the set PSI of 85. MAYBE there is air in the line and that might be affecting the pressure.
I opened the main drain again for 45 seconds, let’s see what happens in the next day.
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We are at the end of a water distribution line, and the area keeps building new homes and businesses. When we first moved in we were lucky to have 40 PSI at off peak times. In the mornings when lots of people were taking showers it got really bad. Finally the city put in new water mains and wee finally have respectable pressure, but nothing close to 100 PSI.