The simple fix the next time you head to a site where you can dump:
Have about ten gallons or so of water in the tank. Pour about 8 ounces of a dishwashing soap through the nearest toilet. We use Blue Dawn. As you drive to the next site the water and soap will slosh around and sort of scrub the inside. Dump when you get to the site.
If you have a black tank flush, use it. Sometimes I'll add water to the tank and let it go to about 2/3rds and then pull the dump valve. BE CAREFUL! Many a person has gotten distracted and overfilled the black tank and bad stuff came up and out the toilets...
I do the same Blue Dawn treatment to the gray tank. I pick the sink closest to the tank, carefully pour the Dawn into the drain, put the stopper in and fill the sink. Then I pull the stopper and the water in the sink pushes the Dawn through the sink trap and into the tank.
Ray
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2020 Georgetown GT5 34H5
2020 Equinox Premier AWD 2.0L/9-speed
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