DrewE wrote:
I respectfully disagree about blowing out the lines being insufficient for 10 degree weather; if done properly, it's every bit as safe as pumping antifreeze, as air doesn't freeze and expand.
My neighbor, who has lived across the street from me for many years, and whose RV has experienced the exact same conditions as my RV for many years, would agree with Drew 100%. My neighbors success with blowing out is 100%. His toy hauler is much larger, "fancier," and more complex than my class C, and he has more plumbing fixtures. And we get very cold here, -20f nights with 0f days is not unheard of.
But my neighbor still buys two gallons of pink antifreeze to pour in all his traps. I winterize my entire rig with the same amount, so zero additional cost for me to be 100% certain. Two gallons of the pink and after pumping through the system, it flows in to the traps to protect them as well.
It is all personal preference. But if you flow pink through everything you can't go wrong IMO.
