Black Water Tank Cleaning Issues
We have the TECMA electric toilet with the macerator. We have to dump every three to four days or tank fills full. We generally have no problem unless we go more than 6 weeks without moving, even if I back flush the tank each time I dump, waste builds up in the tank. I eliminate this problem by using TankTek RX. I put 2 oz in the tank via the toilet, I always make sure the tank is at least 70% full before I dump. I try to close the dump valve before it completely empties, leaving a few gallons in it; after dumping I always add 1/4 to 1/2 oz of TankTek RX in the tank. TankTek RX is helpfull in all septic systems, it keeps the waste digested off of the walls of the tank and prevents the buildup of unwanted waste byproducts other additives cause in the the tank, "Struvites". It is also extremely good at eliminating the odors.
Once a neighboring rig had a black water spill on the ground. I put a couple capfulls of TankTek RX in a 1 qt spray bottle and filled with Distilled water; I sprayed it on the entire spill area. The odor was gone within minutes and stayed gone. The chemical/enzymes digest the waste and it all becomes fertilizer on the ground without killing the grass.