RitkeiExplorerMay 30, 2013Black holding tank won't drain past 2/3After 4 days of camping we have a full holding tank. I open the black valve and hear a rush of fluids for about 1 min, then nothing. Check the tank level inside and it shows 2/3 full. After searchi...Show More
DE88ROXExplorerMay 30, 2013I replaced my black tank sensors with these and my gray tank sensors with these
About RV Tips & TricksLooking for advice before your next adventure? Look no further.25,179 PostsLatest Activity: Jan 16, 2026
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