Quote:
Originally Posted by Zigmorgan
Can I use regular antifreeze in my black tank when in a pinch?
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Never put regular antifreeze down the sewer. You should never have an "emergency" because you can buy propylene glycol (pink) at any Walmart. Next time you're there pick up a few gallons. Secondly, the amount of mis-information on this threadis astounding. Ethylene glycol is poisonous. Propylene is NOT poisonous.