Comments about Sealand Sealand TDX-C Toilet Treatment Chemical:
After each pump out of my Sealand Traveler head, I pour in about 1/2 cup of this stuff with some water. The head with occasional use, is then odor free for at least a month. If things start ripening up, I just add another 1/2 cup and it kill all the odor for another month, or until I get to the pump-out station.