Garage & Garden ruling
Can antifreeze and coolant go down the drain?
The garage product stays out of the household plumbing. Full stop.
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Sink or drainNo
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Garbage disposalNo
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ToiletNo
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Septic systemNo
01
Why the pipe objects
Used coolant may be toxic and contaminated with metals; even sweet-tasting spills can poison pets and wildlife.
02
Do this instead
Capture it in a sealed container and use an auto shop, recycler or hazardous-waste program that accepts coolant.
03
Already did it?
Do not mix it with cleaners, fuel or other fluids. Contain the remaining product and contact your local wastewater or hazardous-waste authority for spill guidance.