[Bricklin] check valves

[Rick at High Tech Coatings]

Be careful when shopping for check valves to get one with a low cracking
pressure, if they are 10# your tank will have 10# less pressure than the
compressor side of the valve, If the crack is 100# it will not open until the
compressor has 100# more pressure than the tank. A 1# crack valve will open as
soon as the compressor starts and close when it stops.