Bought a second one for my kitchen. The first in the bathroom has been working for the second year without any complaints. Once they dropped it into a filled bathtub, which caused the battery compartment to flood, but overnight drying brought it back to full working capacity. I pour new soap into old tanks, diluting it with water in half and stirring thoroughly. And in the kitchen he poured detergent (also diluted). The stupid touch button is very infuriating. Sometimes it works from water that has fallen on it, and sometimes it does not react to a wet hand.