Home Improvement Asked by Kevin Cantwell on December 24, 2020
Had irrigation system installed 2 months ago. Due to location of meter and PRV, the POC was after PRV. After done was told pressure too low even though static pressure was at 63psi, dynamic flow was 45-47psi. Had plumber change POC before PRV and ran this in 1″ PEX from front of basement to rear basement and out to backflow. The house pressure is at 65 but the irrigation line is now 130psi.
Now irrigation guy said will need a pressure reducer at the valve box
My main concern now is that I have a charged line running from front of basement to back of basement that is charged at 130psi.
How concerned do I need to be?
It will depend the material used, the diameter of the pipe, and the temperature.
What you want to know is what is the maximum working pressure of the material that was used. Most likely it will be higher then 130 psi. Some examples are:
Regardless, you will need a PRV. If it was me, I would install the new PRV on the line near the point of connection to the main. Then, adjust the PRV so that you have the desired pressure at the irrigation box.
Answered by pdd on December 24, 2020
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