I'm working on a problem for a friend. House is 15 years old, in a tract development on a hill. Static water pressure (measured at a hose bibb) is a hair over 40 PSI but drops way off with hose running -- volume is low at all exteriour hose bibbs, making portable sprinkler operation impossible. The lavs, showers, sink seem OK.

The neighbor says that originally the tract had 80 PSI and "everyone had PRVs". Later, the system pressure was lowered to 50 PSI, and neighbor had his PRV removed. I have not checked pressure at neighbor's hose bibbs to verify that 50 PSI is available.

I thought I knew what a PRV looks like, but this is what I see in the meter box. Can't get a good look at it without shovel work (which I will do, later). Looks like a hex plug or nut on the far end, and discharge is downward (?).

(click on any image for much larger pic)

The neighbor says that originally the tract had 80 PSI and "everyone had PRVs". Later, the system pressure was lowered to 50 PSI, and neighbor had his PRV removed. I have not checked pressure at neighbor's hose bibbs to verify that 50 PSI is available.

I thought I knew what a PRV looks like, but this is what I see in the meter box. Can't get a good look at it without shovel work (which I will do, later). Looks like a hex plug or nut on the far end, and discharge is downward (?).

(click on any image for much larger pic)

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