What do you do to get the tank off, so the gas doesn't go everywhere??
OK, that explains it. The QD's I got only self-seal on the female connector.......The placement of mine on the hose runs prevents improper mating, but you've got better parts and a foolproof setup to boot. Good Job!-------snip-----------
The connectors I used are not flow dependant so it doesn't matter which way round you fit them, both male and female halfs are self sealing when parted and when connected the seal is made by an 'O' ring on the outside of the male half.