If you didn't bypass the hot water heater, there's not much to do. Make sure the water heater drain plug is in and you should be good to go. She's going to spit and sputter for a while until water finds it's way back to all the sinks and showers.
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2014 Aerolite 213 RBSL
2016 Chevrolet Colorado
run the sinks and showers until ALL the red is gone then run it for a few minutes longer (IF you did not bypass the hot water heater, it may take a few minutes longer. IF you put it in your fresh water tank, it will take LONGER to flush and sanitize.
run the sinks and showers until ALL the red is gone then run it for a few minutes longer (IF you did not bypass the hot water heater, it may take a few minutes longer. IF you put it in your fresh water tank, it will take LONGER to flush and sanitize.