Run antifreeze from the fresh water tank?

Kansas couple wrote:
Am ready to winterize my rig (will be my first time doing this). I saw some YouTube videos. Question: since I don't have a piece of line and the matching clamp is it OK to just put the pink antifreeze in my fresh water tank and run it through the system from there?

Way cheaper to buy the winterizing kit. It will only take a gallon to do your lines, and maybe another gallon or 2 to fill your traps and put a bit in the toilet. You will need to use many many gallons if you decide to put enough in your FW tank to get it to pump through the system. And flushing it out in spring will take lots of water.