This is a discussion on A New Members 10 Gallon within the Freshwater Journals forums, part of the Aquarium Photography category; -->
hmmmmm it's not a busted non return then is it ?
that happened to me one time.
well i hope that perhaps ...
i did one of these DIY c02 bottles myself awhile back, the pressure of the bottle blew the hose out one day and foamy yeast water was on everything, i didnt see it happen just saw the mess lol maybe i did something wrong but i avoided c02 all together ever since and my plants are doing great.
If you're worried about a blowout you can always purchase a small rubbermaid container with a snap on lid. Put your CO2 generators in there, drill a decent sized hole in it to run the line out and relieve pressure if you do have a blow out then put on the lid. If the generator ever does blow the container will contain it.