A little while ago I cleaned the dirty coils of my (new-to-me) beer cooler and also gave my existing python lines a deep clean too. I'm not going to be using some of these for months and in a few cases perhaps for some years, so I'm thinking of the best way to keep them clean and mould-free, without regular attention.
Squirting CO2 through doesn't empty them properly (which is unfortunate as I'd like to keep them dry), it gets most of the liquid out but then just bubbles through whats left in there. So I may have to keep them wet with something, like boiled water, and capped off.
Does anyone know of a better way for longer term storage?
Cheers
Kev
Storing used Product Coils and Beer lines