Step 5: Practice, Practice, Practice
Please be safe and do not put excess air into the cannon. 60 PSI of air is enough pressure to propel a 12 oz beer can approximately 15'-20' depending
on the size of the expansion tank. PVC is not designed to withhold air and will splinter if the pressure is too high.
Schedule 40 PVC is rated to withstand 140PSI of liquid and is not rated for air. Accordingly, PLEASE keep the air pressure well below this threshold. Never aim the cannon at anyone and when working on the cannon, please make sure there is no air or beverage in the cannon.