I haven't used mine in ages. When I first bought it, I also bought two bottle brushes that were made for it. The larger one was for cleaning out the bladder and the smaller one was for the tube. They also sold a plastic thing that goes inside the bladder and holds it open to help it dry out completely.
I always cleaned it with dish soap and water.
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles