Last week, I sanitized the fresh water system on my 2011 Keystone Montana 3400RL 5th Wheel. Now this cold snap will bring temps down to 25 degrees tonight. I used the Thetford system to sanitize ...
Down to 25, furnace running (set to 55).....should be OK Open cabinet drawers/doors where plumbing lines may run so warm air can circulate inside cabinets Turn off water supply and open ALL faucets/shower etc. so water can expand if needed. Flush toilet to relieve water pressure on toilet water valve