1. Install a net cover at the kitchen sewer, and buy some suitable net covers to install at the kitchen sewer, as shown in the following figure.

2. It can prevent rats from coming in from the kitchen sewer. If nothing can be fixed after installing the net cover, it is best to hold some heavy objects.

3. The kitchen waste should be put away or thrown away in time, and the kitchen waste in the garbage building should be beautiful and thrown away every day as soon as possible.

4. The toilet is built in the form of extension, because it is the toilet that is directly connected to the sewer.

5, snacks and other foods with strong fragrance should be put away at ordinary times. Foods with strong fragrance can easily attract mice, as shown in the following figure.

6. Close windows and balcony doors and windows with sewer pipes nearby, so that rats can run around on pipes and wires.

7. Tips: French fries, potato chips, peanuts and some dried fruits are all foods with strong fragrance, so please put them away.