These water containers I found at a local hardware shop are $10 and the ideal size for the batches I want to start making. I need your help/advice in how to make an air lock and maybe a spigot at the bottom to bottle directly. Never done anything like this before but should be easy enough with the right tools since their plastic. it comes with a screw top that I could drill a hole for the air lock but would like to save the cap to seal the jug while I oxyginate (agitate it with the lid on and use it for that purpose) and maybe then put a rubber bung? Would this work