to accomplish this shop air is directed through regulator 70 and valve 80 u2032 into tube 17 to pressurize the containers 10 and or 20 and at this time valves 31 and 31 u2032 are closed relief valve rv is used to assure that excessive pressure does not appear in tube 17 the tube assembly including suction tube 35 and delivery tube 36 is a simple light weight assembly which is manually placed into reservoir 33 during fluid replacement and removed from reservoir 33 for draining containers 10 and or 20 with this assembly removed from reservoir 33 and placed into a disposal container not shown and with the opening of wither or both drain valves 31 and 31 u2032 depending on which container is to be drained the containers 10 and 20 are drained directly the step of draining the containers 10 20 is preferably accomplished by closing valves 31 and 31 u2032 pressurizing the containers 10 and 20 and then closing shutoff valve 80 thereby isolating containers 10 20 while they are under pressure whereupon the system all shown in fig2 except for vehicle reservoir 33 is then moved to a drainage site for disposal of the fluids wherein the fluids in containers 10 and 20 are forced out by the pressure held in containers 10 and 20 through the valves 31 and or 31 u2032 no assistance from shop air is required for this forced draining an alternate method of draining container 10 is to provide a two way drain valve.