Forum Discussion
ktmrfs
Oct 06, 2018Explorer II
I end up with antifreeze in the grey tanks, not as a tank protection issue but as a "byproduct" of good practice in winterizing. you do NOT want a P trap to break, and the common and easiest way to make sure that doesn't happen is to pour antifreeze down each drain to fill the p trap with antifreeze. and to insure each is filled, excess will be needed and end up in the grey tanks.
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