Welcome to Mayumi

Easily clean by preventing black spots!
Bleaching power prevents black spots and keeps the toilet clean!
● The color of the flowing water is colorless, so you can see the state of urine and feces.
● Standard use can be used for about 4-8 weeks. (It will vary slightly depending on temperature, water temperature, water volume, etc.)
● The product does not mess with the equipment in the tank, and does not affect the bacteria in the septic tank or the septic tank or the dew-proof tank, so you can use it with peace of mind.