I have a Wilkins Model 70 pressure regulator on my house - (city water system). The static pressure (measured at a hose bib 15 feet from the regulator) is 60 lbs, the overnight pressure is 80 lbs (my hose bib mounted pressure gauge has a needle that sets maximum pressure).
I think my regulator is bad (installed 1985) - not because of the overnight increase in pressure (could be thermal expansion) - but because the simplest water use, like flushing a toilet for example, cause a 20 pound fall off in water pressure on the gauge - a fall off in pressure which does not recover until the water demand is over. If the regulator was function correctly - should the regulator increase flow - thus increasing pressure to something close to the static value (over time)?
Wilkins's charts/specifications for the Model 70 indicated that I should only be seeing something on the order of 10 pounds of fall off in pressure.
Any comments?
I think my regulator is bad (installed 1985) - not because of the overnight increase in pressure (could be thermal expansion) - but because the simplest water use, like flushing a toilet for example, cause a 20 pound fall off in water pressure on the gauge - a fall off in pressure which does not recover until the water demand is over. If the regulator was function correctly - should the regulator increase flow - thus increasing pressure to something close to the static value (over time)?
Wilkins's charts/specifications for the Model 70 indicated that I should only be seeing something on the order of 10 pounds of fall off in pressure.
Any comments?