Noted TomR message on complete CSV1W failure and your response on what has happened. I have had the valve installed for 2years almost exactly. Run time has been much less because I shut my system down in the winter and drain all. Use only from May thru early October for lawn, shrubs, garden, etc. I have long drip runs that are pretty minimal but think they exceed the 1GPM minimum for the CSV to work. Lately I have noticed the CSV will not maintain the 50PSI default pressure and pump/tank cycle back and forth between 40/50 on all my drip runs.
I have the 40/60 switch. The CSV will maintain 50PSI when I run large gpm draws like lawn sprinklers lines. When I quit watering the pressure only goes back to 50PSI which seems strange? Should it not run up to the 60 switch max? I have been pulling what little hair I have(76 years old)out and would appreciate your thoughts. I am hoping I will not have to replace the CSV. Could the air pressure in the tank bladder come into play at all? That is my next check for tomorrow. Thanks.