Bad discovery!

[OldCoot]

Originally Posted by Tracey

Thank you again. We flushed it very well when we got to the campground and believe me, it was full! If I were that dealer I would be embarassed to have sent something out like that. There goes his chance of ever having me recommend him! The black tank is still reading as full but I intend to flush it out again very well before I close her up for the winter.

On the trip home, put about 2 gal of water in the black tank, a cup of laundry detergent, and 2 or 3 big bags of ice and drive home. If you don't have somewhere to dump at home, get a 5 gal bucket and dump the black tank in the bucket. It may be smelly, but you can dump the bucket in your home toilet or septic tank.

[Herk7769]

A 72 hour treatment of RV-Digest-It followed by a treatment with "RV Probe Cleaner" will clean the tank walls. If there are still solids trapped against the low spots along the wall you may still get the 1/3 light on. Once you get to the 1/3 light, if you can not make further progress, you may need to remove the lower two (ground and 1/3) probes and clean with a long thin bottle brush to break up the hard crud that is shorting those probes.