Slightly OT, but hopefully close enough. I store my carbon filter in the home fridge in between trips as a way to keep bacteria from growing in it. A wet filter stored in a hot/warm basement for a few weeks will grow stuff. Carbon does not necessarily kill bacteria as it filters out elements in water.
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels