Forum Discussion
Sandia_Man
Feb 19, 2014Explorer II
A 1/4 cup of bleach for every 15 gallons of tank capacity is what is recommended by most RV manufacturers. During the de-winterizing process, we fill tank adding an appropriate amount of bleach, run water through system to sinks, toilets, showers etc. Let sit for an hour or so depending on severity, drain and flush with fresh water. Bleach doesn't stay in system long enough to do all that much damage and if you don't overdo it in terms of how much bleach or how long it sits, damage is negligible.
We primarily use chlorinated city water from home in our FW tanks (always travel with at least one tank full) as we have run into some questionable water on the road, for us the process of sanitizing the freshwater tank is simple since the tank is pretty much clean already. We have even skipped sanitizing our FW tank a year or two over the 7 years of ownership of our current rig with no ill effects.
We primarily use chlorinated city water from home in our FW tanks (always travel with at least one tank full) as we have run into some questionable water on the road, for us the process of sanitizing the freshwater tank is simple since the tank is pretty much clean already. We have even skipped sanitizing our FW tank a year or two over the 7 years of ownership of our current rig with no ill effects.
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