Thursday, June 1, 2023


How not to clean a plastic RV toilet

RV Doctor

Dear Gary,
You have helped me several times in the past and now I have a minor problem. The toilet brush we have been using has really “scored” and scratched our RV toilet badly. (We think the brush we were using is designed for ceramic toilets.) I have managed to get rid of the gouges with rubbing compound and then car wax. My question is: What can we use to clean the toilet without leaving the scratches? Many thanks! —John E.

Dear John,
I’m not a big fan of plastic RV toilets for the very reason you mention. They are simply not compatible with most abrasive cleansers and bathroom brushes.

I think you’ve done the best thing you can to rectify the issue though. If the car wax contained carnauba, that will help. Future cleanings should be performed with a strictly non-abrasive cleaner and with a very soft brush.

Personally I don’t have a favorite toilet cleanser so any non-abrasive cleanser is a potential. It may take some experimenting to find the one best suited for you.

gary-736Read more from Gary Bunzer at the See Gary’s videos about RV repair and maintenance.



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4 years ago

Thetford rep told me to use the Clorox wand. He said the toilets scratch easily and that is about the only thing, short of a sponge (yuck) that will work and not ruin the silicone coating on the part of the toilet that opens.

Sam Lunt
4 years ago

Once you get the bowl clean, then dry, spraying a vinyl protectant on it and leaving it will make it more slippery and therefore it will remain clean longer. Not sure what that will do to the microbes necessary for breaking down solids, though. Possibly nothing.

4 years ago

For years now I have used one of those foam “dish washing sticks”. I get it from the dollar store and it works very well to clean the toilet and the rubber gasket. Also from the dollar store I get a bottle of spray cleaner for cleaning the toilet. When finished cleaning the toilet I place the brush behind the toilet in the bottom half of a 1 quart plastic milk container. Once a year I chuck the cleaning brush and spend a whole dollar on a new one.

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