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Pops_R's avatar
Pops_R
Explorer
Jan 04, 2017

Using Automotive Antifreeze in Black Grey Water Drains

Is there any harm in using the Automotive antifreeze in the gray water drains? I understand it is toxic and why why we use RV Antifreeze to winterize, but do not know if there is any concerns to da...
siggyd777's avatar
siggyd777
Explorer
Jan 04, 2017
Automotive antifreeze is most likely ok to use in your holding tanks in a diluted 50/50 or less form. It will not harm your tanks,gaskets and so on. BUT draning it it into the sewer system is ILLIGAL,because it is
VERY TOXIC. So , Don't do it !!!
Siggy

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