¡Look at (and READ) the pink stuff jug!
On the advice of a friend that used to be a product engineer for a major OE chemical supplier, I have started reading the jugs of RV anti-freeze that I have. The old ones were straight Propylene ...
Forum Discussion
dougrainer wrote:
Well, lets look at HISTORY. Hundreds of Thousands of RV's are winterized every year. They all use what is called RV antifreeze, regardless of the maker. IF ANY of the Antifreeze harmed humans, there would be BIG National news stories every spring. So, do not worry, you will be OK. The Antifreeze is not designed for regular drinking but for freeze protection. The REAL way to de-winterize is to drain and flush and then SANITIZE your fresh water system as ALL the manuals state. They recommend BLEACH (small cup) to sanitize the fresh water tank and systems. Would YOU drink a gallon of straight Bleach? But, RV'ers are always using a small bleach mixture to sanitize their systems. QUANTITY is the real issue here. Too MUCH water will kill you also. RV antifreeze will get slushy below 32 degrees, it will not stay a complete liquid. Doug
this is the first year in our area where the RV antifreeze with alcohol has been very common. Until a few years ago virtually all of it was straight propolyne glycol. Last year a few "off brands" had ethyl alcohol and propolyne glycol. This year it seems like all the stuff I've seen has ethyl alcohol and propolyne glycol.
Ethyl alcohol is safe as is, or IF it is denatured w/o deadly stuff. I'm assuming if the RV antifreeeze was denatured with methanol, acetone etc. it would have to be clearly labeled as a hazardous material and not safe for potable water systems.
