Whenever we're dumping the tanks, and cleaning out the "slinkies": our last protocol is to put about a cup of dish soap down the toilet, and we fire up the San-T-Flush. We let the tank get about five or six gallons of water in it, and then we dump the tank. We continue using the flushing system, until the water coming out is free from suds. The tank and the Slinkies are spotless, and bug free!
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