Garage & Garden ruling
Can windshield washer fluid 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
Many formulas contain methanol or other solvents that are toxic in concentrated amounts.
02
Do this instead
Use it in the vehicle as intended or take unwanted fluid to a local hazardous-waste collection program.
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.