I am still using the V1 and a 24V electric sprinkler valve. I use an air compressor and two 9v batteries for the energizing. It's been working for about a year now. but about half way though last year I have had trouble with the value releasing at any pressures higher than like 40PSI, it seems the solenoid can not click and only when we reduce the pressure can we get it to active.
Does anyone know if any maintenance I should be doing on the valve, or other issues that I can fix that will allow me to get closer to 75PSI?