I have two 60 gallon tanks or 120 gallons of total storage.

I have a 50% duty cycle compressor that is rated for 10 minutes of steady use or roughly 10 gallons in that time.

I would like it to kick on when the combined tanks read 110 gallons, however the solenoid valve doesn't detect how many gallons are in the tank, it only detects how much pressure (PSI) is in the tank.

So if my only way of turning the compressor on and off is by detecting PSI levels, is there a calculation to know what psi would be in these tanks at 110 gallons for the pair (or 50 gallons for the single) so that I could know what psi I need to set the low end kick on at. Normally it goes from 90-120 psi but I'd imagine I need to set it higher to 100-120 psi or higher.... but this is all just a vague guess without knowing the math calculation to know for sure.

I have a 50% duty cycle compressor that is rated for 10 minutes of steady use or roughly 10 gallons in that time.

I would like it to kick on when the combined tanks read 110 gallons, however the solenoid valve doesn't detect how many gallons are in the tank, it only detects how much pressure (PSI) is in the tank.

So if my only way of turning the compressor on and off is by detecting PSI levels, is there a calculation to know what psi would be in these tanks at 110 gallons for the pair (or 50 gallons for the single) so that I could know what psi I need to set the low end kick on at. Normally it goes from 90-120 psi but I'd imagine I need to set it higher to 100-120 psi or higher.... but this is all just a vague guess without knowing the math calculation to know for sure.

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