Question About PSI?

[bkelly2 (Brian Kelly, AZ Cert. # 60234)]

@mcalcagno

First of all, thanks for the responses. What the guy told me was that the water pumping station pumped at about 115 to 120. The reason was that it is pumping uphill. Now, here in California, are you guys telling me that if the pressure is over 80PSI, then a regulator is “Required”. By whom? The state? The local municipality? I see it in my Code Check book, but I’m not 100% sure where it’s required.

Next question. If the water from the water company is pumped at over 100 PSI, and a regulator is required, then doesn’t it stand to reason that the water company would put one in at the main? Why do they get to bypass the code, and I don’t? Should the original builder have done this?

You can see it’s quite a conundrum here. And last question, why is it code here in California, and not elsewhere. Aren’t the plumbing codes universal?

Thanks again.

The Code you are referring to is a Residential Building Code, the water Company has their codes to meet.

The water company is not required to regulate the pressure on individual homes, that is the Home Builders job. So the Home Builder should install a regulator on the water line before it enters the house.

The water company needs to supply a minimum water pressure to all the homes it serves.