Ugh! Was up Snowboarding in Tahoe and the temps got well below freezing overnight. I kept my heater on in the 4WC but forgot to turn on my Lithium Battery heaters! My Heater will run all night with the fuel supply I have but when the battery bank got too cold the Lithiums shut down and my water system froze. I lost my water manifolds, shower valve, water pump pressure valve, filter cartridge cover and the uv chamber. All my fault!! I was planning a trip To Baja the very next week and Guzzle got me a replacement in two days!! pretty cool!! The ability to replace pieces and not need to re purchase an entire system is awesome! Thank YOU Guzzle H20!!!