I've read many of the discussions on this subject from some years back, but haven't found the information I need. I have some type of flow regulator on my household system made by Jacuzzi [BRO8] that was installed in 1974, but I don't know if it's a CSV or VFD or XYZ. It is installed near the pressure tank on the 1" line from the well that feeds a 1" line into the house and is connected to a Welltrol WX203 of the same vintage. From all descriptions, I think it's a CSV, anyway, it's worked well for 42 years.
A problem arose several months back when I heard the pump running continuously with no apparent water usage. The pressure stayed at 40# although the pressure switch was set at ~35-55#. With reports of well problems from neighbors and finding my water level had dropped considerably over the years, my first thought was the well was going dry, although there were no burps in the water line suggesting it was sucking air. We pulled the pump, checked it for leaks along the line and replaced it several feet deeper. When I started the system again there was no change. I connected a garden hose to a hose bib on the well side of this installation and it pumped ~8gpm @ 50# for 20 minutes, so I figured the well and pump were OK and suspected this valve was the problem. I checked the pressure charge on the empty Welltrol which was ~38#--no change.
At this point, adjustments were made to the set screw according to some info I gleaned from similar sounding valves on the web. With a 2 gpm flow, I had to adjust the screw all the way in to achieve shutoff and that was only after I adjust the pressure switch down to ~50#. For the most part is has allowed us to have water, but it sometimes (such as filling a bathtub) only runs at ~30# and after shutting all water off will rise to 40# and just hang there. I've adjusted repeatedly and can get to 50# where it shuts off as prescribed.
Do these valves wear out or stick? There has been slight, fine sediment and sometimes sand in the water at times, and I wondered if there may be sand or such accumulated in the valve. There is a fine screen filter built in and I've found no significant residue in it whenever I've checked and that should preclude any sediment from entering the flow control chambers anyway.
A problem arose several months back when I heard the pump running continuously with no apparent water usage. The pressure stayed at 40# although the pressure switch was set at ~35-55#. With reports of well problems from neighbors and finding my water level had dropped considerably over the years, my first thought was the well was going dry, although there were no burps in the water line suggesting it was sucking air. We pulled the pump, checked it for leaks along the line and replaced it several feet deeper. When I started the system again there was no change. I connected a garden hose to a hose bib on the well side of this installation and it pumped ~8gpm @ 50# for 20 minutes, so I figured the well and pump were OK and suspected this valve was the problem. I checked the pressure charge on the empty Welltrol which was ~38#--no change.
At this point, adjustments were made to the set screw according to some info I gleaned from similar sounding valves on the web. With a 2 gpm flow, I had to adjust the screw all the way in to achieve shutoff and that was only after I adjust the pressure switch down to ~50#. For the most part is has allowed us to have water, but it sometimes (such as filling a bathtub) only runs at ~30# and after shutting all water off will rise to 40# and just hang there. I've adjusted repeatedly and can get to 50# where it shuts off as prescribed.
Do these valves wear out or stick? There has been slight, fine sediment and sometimes sand in the water at times, and I wondered if there may be sand or such accumulated in the valve. There is a fine screen filter built in and I've found no significant residue in it whenever I've checked and that should preclude any sediment from entering the flow control chambers anyway.
