erroroneous lights on panel
What recently worked for me - history first. I purchased my used 5th last fall and the black tank appeared/smelled unused. But the 1/3 indicator would remain lite even after emptying. Reading lots of posts I settled on this plan of attack:
First, I added 1 cup of dawn dish soap AND one cup of Borax (suggested as an alternative to calgon - which many others like myself - can not find). Then I filled the black tank slam full (the overflow of bubbles went up to the roof vent). I allowed this concoction to stew for 3 days; but Drats, after I drained it I still had the 1/3 lite on the panel.
Being stubborn, I added another cup of borax (no dawn) and again filled it slam full (that's southern talk) with water. On day three I drained it -and success! When empty I now have no lights on. Will this work for anyone else? Danged if I know, but it did for me.
In the future I will add a quarter cup/each, before leaving, per future camping trips.
Ohhh, I forgot to mention this, the first drain smelled so good! It must have been the dawn.
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former 2008 Jayco Eagle 29.5 RLS
former 2014 F250 6.7 4X4, CC LB
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