I shot a few mosquitoes dead on the toilet tiles, and a lot of black stuff was left on the tiles, to

Daily cleaning of ceramic tiles can be carried out with dish soap, soap, etc.

Cleaning the tiles with a mixture of soap and a little ammonia and turpentine can make the tiles more shiny.

Polished tiles should be waxed regularly, and the time interval should be 2-3 months.

If there are scratches on the brick surface, you can apply toothpaste to the scratches and wipe them with a dry cloth to repair them.

The cracks of brick B can be removed from time to time with detergent, and then a layer of waterproof agent can be brushed on the gaps to prevent the growth of mold.

Sodium hydroxide or potassium bicarbonate solutions can be used to remove contaminants such as tea, coffee, beer, ice cream, grease and grease.

To remove ink, cement and other contaminants, dilution solutions such as hydrochloric acid and nitric acid can be used.

Special cleaners can be used to remove contaminants such as paints and coatings.

To remove rust, you can wash it with an oxalic acid solution of 2 and then wipe it off with clean water. If it is rust stains, you can use 10 oxalic acid, citric acid and water mixture to soak the rust area, and then wipe it with concentrated salt water.

To remove all kinds of gum you can use banana water. Pure banana water is a colorless, transparent and volatile liquid, with a strong banana odor, slightly soluble in water, soluble in various organic solvents, flammable, mainly used as a solvent and thinner for painting.

Mercury can be scrubbed clean with gasoline or with a stain remover cream.

Human blood, washed with oxalic acid.

Wet with water first, and then use a regular toilet detergent.

Apply with toothpaste, wipe with a dry cloth, and then wipe with a damp cloth.