Most Common Method Used to Winterize?

beemerphile1 wrote:

otrfun wrote:

...My 2nd reason for adding antifreeze directly to the FW tank is my rig requires the removal of a basement wall to access the water pump inlet. For me, using an extra 2 gallons of antifreeze, at $2.50 a gallon, is a fair trade-off to not have to spend 30 minutes to R&R the basement wall....

HAH! Think you saved something? Wait till you see the time, water, and effort required to get the residual antifreeze out of the freshwater tank in the spring.

Rather doubt that. Even dried RV antifreeze rinses off very easily. Even if I did a less than stellar job of rinsing/sanitizing the FW tank in the spring, the few ounces of remaining RV antifreeze diluted with 100 gallons of water will be more than enough to dilute it safely for our use (shower and dishwashing only). If residual antifreeze was going to be an issue, the powers to be would have never allowed RV antifreeze to be used in potable water systems in the first place---there's always going to be some residual.

We never drink our tap water . . . so it goes without saying we won't be drinking water from our FW tank. So, not an issue in any case.