When there is less dirt, I will use washing powder and water to make a paste and put it on my hands, and then scrub my hands a few times along the wall of the basin. Editor: zjn. Just go over the whole basin one by one, and then wash it with clean water.
It is recommended to use phosphorous detergent for washing powder. Moreover, plastic basins are generally smooth. Prepare a little water, and the little residue left after pouring the water is enough; a small amount of washing powder, here must be washing powder, washing liquid, detergent will not work. Pour a small amount of washing powder into the basin, usually a handful is enough, and then rub the wet greasy area with your fingers while pressing the washing [...]