A filter that does not pass oil or oil vapors must be installed in the air supply line between the compressor and DRINKING WATER system when compressed air is used to pressurize the water tank system.
Wash. Admin. Code § 246-215-05335
Statutory Authority: RCW 43.20.050 and 43.20.145. 13-03-109, § 246-215-05335, filed 1/17/13, effective 5/1/13.