No bother, just drink it again. It's good enough for Bear Grylls.
Only 1 litre of water in that one, but Decathlon is full of good stuff.
I used steradent tablets. The bonus here is that the mint flavour offsets the horrendous plastic taste you can normally find with cheap bladders.
Only 2L, I'd fill that up in no time. It is for your pee, right?
Echo this. I was looking at ones at wiggle and they’re about 4 times the price of decathlonand pretty much the same.