How to clean dirty water tank and clean water tank?

1. Take out the dirty water tank, pour out the dirty water. (If dirt remains at the bottom of the tank, you can use a cleaning brush to assist in cleaning it thoroughly.), close the tank and put it back.
2.Take out the clean water tank, clean the filter, add enough water, then close the tank and put it back.
Note: After the dirty water tank is cleaned, the top cover must be tightly closed.