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How to correctly place flood control sandbags

The correct placement steps are as follows:

1. When not in use, put the flood protection bag in a boring place indoors for backup. It can be used at any time during news and typhoon rainy season to prevent flood and water.

2. When in use, move the bag to a nearby place where it is needed, and stop flood control and interception.

3. After the flood recedes, the flood control bags that have not been soaked in water can be put back into the boring place indoors for safekeeping, and the flood control bags that have been soaked in water can be put into the boring place after natural air drying.