Black water tank & storage wet or dry?

[jbailey01]

I must store my unit for the next six months. It will be covered, but hot daytime temps. in South Texas. Would it be better to leave the blackwater tank somewhat full or dump before storage?
My thought is that liquid in it would be better than almost dry & the heat drying out the tank leaving dried accumulation. It does not have a backwater flush system to wash out the tank.

[Alumaholic]

I never let either my main or auxillary tank dry out.
In storage the black tank will have 4 ounces of of Campa-Chem and two toilet bowls full of water. I also try to keep water in the toilet bowl and replenish it when it evaporates.
The gray water tank is less of a concern because you have no "paper mache" or "pooper mache" as the case may be to harden and adhere to the bottom of your tank.
Hope this helps.