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Ok to leave the black water tank 1/2 full while in storage?

precioustime
Explorer II
Explorer II
We always try to empty our black and gray water tanks before heading home to our storage. At times it doesn't always work out and we end up leaving the tanks half full, no more, and put the rv in storage. It is not there for too long, 2 months max. It is in storage in Miami, not a cool place in temperature. We always drop in the blue packets of tank deodorants every time we dump and fill up again with 1/4 of water. Is it bad to leave the black water tank 1/2 full for 2 months in storage?
32 REPLIES 32

MFL
Nomad II
Nomad II
Not something I would do, but depends somewhat if half full is mostly liquid, or lots of solid waste. I doubt the blue packets would do much after 2 months in the heat. I do try to always keep some liquid in my black tank, even in Winter storage, rather than let it dry up. After a good rinsing, I'll add quality anti-freeze, that won't evaporate, and helps lube the valve seal.

Jerry

Tyler0215
Explorer
Explorer
Leave raw sewage sit for two months? I don't think so.

Mfan
Explorer
Explorer
Well, I wouldn't, lots of time for stuff to grow