Here’s an easy and green way to keep your hydration pack bladder ming-free. Made from extracts of fruit and plants, Citroxx’s cleaning juice is non-toxic and environmentally friendly.
Putting 20ml in a bladder full of water for 30 mins makes it healthy and hygenic. Then swill it out and refill with your chosen riding bevvy. It won’t shift the black crap that's already there, but it gives a fresh taste.