Operating steps:

1. Prepare the dry shell to be foamed and rinse it with clean water.

2. Prepare a deep-mouthed container and soak the cleaned casing in water for half an hour.

3. When the time is up, connect one end of the sleeve to the water pipe, fill it with water, see if there is any water leakage, and cut off the water leakage.

4. After the inspection is correct, connect one end to the enema tool and you can use it.