" I then add my treatment packet. It is okay to have water in your black tank during storage. The movement of the water to/from storage and during travel to my next campsite helps the tank and sensors."
Ditto. Running down the road with a small amount of water and some hydrochloric acid treatment packs is the best way to never develop sedimentation problems in your black water tank. There is a good reason why bile is acidic and anywhere that waste is held needs to be flushed with what is essentially a bilious solution regularly. The old way of doing it was to purchase septic tank treatment by the gallon, but today the drop in treatment pacs are easy to get and simple to use. Do not use them in combination with chlorine bleach unless you are doing a reenactment of the battle of the Somme!
Not doing regular treatments can lead to having your trailer permanently constipated. Eventually the build up will lead to a black water system that weighs heavy and sags and cannot properly drain.
If you do not have a macerator or flush jet system then a few bags of ice cubes can help break up clumps of crap. Run it down the road less than a third full with a treatment pack and ice cubes washing around. The ice will quickly melt and won't hurt anything as long as the cubes are not too large in the first place.