Weird Anti Freeze

mics_54

Yesterday I winterized a house. I had several jugs of RV anti freeze that I introduced into p-traps and when I poured it into the toilets I noticed the pink anti freeze turned bright yellow. I noticed today it was clear again. whiskey tango foxtrot! Ever seen this before? Its artesian well. The house next door on the same well didn't do it. There is no water softener..I didnt see any tank bowl tablets. I'm baffled.

Ron The Plumber

Get out the anti freeze tester, like they use on a car, see if it test ok.

XanadooLTD

If there is bleach in the toilet it will change the color of the antifreeze as you say. Usually bleach was used to clean toilets and if any is left this is what will happen. Even those toilet bowl cakes.

XanadooLTD

It definitely turns it clear.

mics_54

Thanks...that makes sense since the house was vacated and prepped for sale. I was scratchin my head wondering what the heck I poured into the toilet second guessing my self after I get home..I always do that.

mics_54

Next question is, will the bleach make the glycol ineffectual? Do I need to go flush it out and reintroduce the glycol?

XanadooLTD

I don't know the actual answer, but i do flush the toilet to remove the bleach again just to be on the safe side. Then ya reintroduce the propylene glycol. hope this helps.

neolitic

This sounds like good advice.

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gregj

I think the color change means someone's pregnant! LOL

The bleach is bleaching the dye that was added to the antifreeze just for pretty. Propylene glycol is colorless. Household bleach diluted in a toilet bowl won't affect the freeze resistance of the glycol. It's ok.

FremontREO

A word of advice or help?
If you are doing the winterize for property preservation companies a little trick that the "old timers" will do so YOU will not be paid or so somebody else can come and "rewinterize" and you get chargebacked for your work or non-paid:::::
here goes: put denture-cream or some toothpastes in the toilet. Magic the RV Antifreeze loses its color...
Good luck protecting yourself.