I have 24 set ups on the go and one I use for work. When I'm at home, I alternate between my set ups. so I only really need to rewick one of them when I'm putting a different flavour in it after a bottle has ran out.
Well, since I make red astaire from concentrate and add raw organic stevia powder solution as a sweetener, once a week, but only cuz i want to. If I waited for it to go bad, would probably be close to 2 wks.
probably every 10 days. I meant to do it every 7days but I vape unflavoured so I can put a lot of juice through them before I start noticing any reduced nic hit or taste degradation.
Just realised its been 33 days! 73ml
I looked at one a few weeks ago and it looked I was using old burnt chip fat. Think that was Cremeux from drip hacks. It had been about a week I think.