Does anyone use a Polar Freeze Guard system to purge their lines and inject antifreeze?

[Roz]

Does anyone use a Polar Freeze Guard system to purge their lines and inject antifreeze? Inherited a polar freeze guard system with a new wash and trying to learn about the system. The small manual seems a bit vague in the operation and settings.

Trying to figure out how you should determine the optimal settings and the amount of RV antifreeze fluid to use with each purge. I like to error on the side of using more RV than necessary to prevent a frozen line. Anyone have insights on the system?

 

[CarWashBoy]

I think it's a good idea, but I know nothing about it.. especially if you live a Cold weather climate in the Winter..