Anti-Freeze Winterization

Blow out water lines or RV anti-freeze?

Q: Which should I do?

A: There are three schools of thought.

  1. Blow out the lines with air and no need to use RV anti-freeze.
  2. Blow out the lines with air and then use RV anti-freeze.
  3. Skip blowing out the lines with air(see why below) and use RV anti-freeze only.

Based on #3, people don’t want stuff that is sitting in bottom of an air tank blown into their water lines, bacteria, rust particle and who knows what else.

I only ever do #3 and have been for last 13 yrs and two different RVs.

Anti-Freeze Winterization

RV vs Car Anti-freeze

Q; What is the difference between RV and Car/Truck Anti-freeze?

A: RV antifreeze is non-toxic and is used in the potable water systems of RVs and boats. Propylene glycol is the most common.

A: Regular anti-freeze is toxic to humans and animals used only as an engine coolant or perhaps some other non-consumable applications. Ethylene glycol is the most common.