A washing machine that washed clothes that were dirty with sweat and mud this summer. Mold and germs can easily grow on the back side, which is normally invisible, so regular maintenance is required (ideally once every 1 to 2 months).


We have introduced the care using oxygen bleach so far, but the special detergent is expensive as it is. In such a case, you can rely on Hundred yen stores. This time, I tried the "washing tub cleaner with color sign" sold at the 100-yen shop "Ceria".


Ingredients include sodium percarbonate (oxygen-based), surfactant (pure soap), alkaline agent (carbonate), and antifungal agent (chitosan). Compatible with stainless steel tanks, plastic tanks, and drum types.

One dose is packed in a water-soluble pack, so you don't need to be lightweight. Put it in a washing tub filled with water up to a high water level (in the case of the drum type, use only the contents of the pack), turn it a little and leave it for 2 to 4 hours.


When the water that turned blue immediately after putting it in becomes transparent, it is a signal to finish soaking. After that, move it in a normal washing cycle and you're done. It seems that the color sign may not appear depending on the water quality and temperature, but this time it became transparent in about an hour. By the way, in the case of a washing machine that is extremely dirty, black dust will appear at this point.



The nice point is that it does not have a pungent odor like chlorine and also has an antifungal effect. Fortunately, it wasn't so dirty at the author's house, which was cleaned around Golden Week, but it's safe to clean it once at the end of summer. Why don't you pick it up while you go to Hundred yen store?