Tell us about yourself!
Hi again, feeling a bit confused. When I power up your setup above using compressed air (temporarily) instead of the fire cylinder it just blows air out of the discharge,but when I put the compressed air on the inlet and block off the supply and then disconnect the air sup the outlet spits some air. So I plumbed it as per the pic below to try and get the same effect but when I released the trigger the qev didn't spit. So not sure what I'm doing wrong. Appreciate your help.