Plastic toilet and sink cleaning?
At some point filling it with water and dishwasher detergent and gentle rubbing with a sponge doesn't work. Resistant stains in sink after mechanical/painting/lubricating work, stains in toilet accum...
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When I open the blade/shutter, smell from the tank dwarfs any other smell. The only time I notice smell with the blade closed is when I bend down to make a (un)holy cross of toilet paper before #2, if you're familiar with this trick. Vinegar (with baking soda) has its place for sure.
