01-12-2025, 07:23 PM
When you say the supply side drops to 0 and the brake side stays at 73, I would guess that your bigger leak is on the supply side side. If I couldn't hear the leak, I would start breaking the system down into smaller parts to find out what is leaking, On 712 my house system gets air from the dryer I have a ball valve in that line I can turn it off and split the system into 2 parts I have ball valves on every line leaving my tanks so I can shut them off
John Kosir
712 2004 45-8