supercubExplorerApr 17, 2015Putting Black Tank Chems in Grey Tank?I'm getting a little odor from my sink drains. Will it hurt to put a little black tank chemicals down the drains into the grey tanks? Thanks Brian
sdianel_-acct_cExplorerApr 17, 2015we use 1 cup of Dawn Platinum dish detergent and one cup of Borax powder dissolved in hot water. No odor.
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