07-18-2021, 07:57 PM
You have a leak at the supply side .There is a check valve that doesn’t allow a leak in the supply side to pull air from the brake side. The compressor will fill both sides.
1993 Newell (316) 45' 8V92,towing an Imperial open trailer or RnR custom built enclosed trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '23 Grand Cherokee.