`My KZ Escape 14RB didn't come with a bypass, so I doubt yours did either. But I had the dealer put one on, and it didn't cost much. Well worth it. 1 gallon of the pink stuff was enough for me, but you being up north should probably use 2 gallons any time there has been water in the fresh tank. The reason I say that is, the fresh tank never emptied completely on mine (probably same on yours) and the remaining water (a half gallon or maybe more) will dilute your antifreeze. So, pour in a half gallon, empty as much as possible, then pour in the rest and run it through your lines (minus the bypassed water heater, which you empty by taking out the anode rod).