One: Clean tools and drainage pumps are hoisted to the water tank.

Waste water pumps and other cleaning tools are quite heavy, and manual hoisting can easily result in broken lifting equipment or rope, as well as slippage.

a. Two or more coordinated lifting operations to prevent slippage.

b. Use two hoisting devices or ropes simultaneously to prevent breakage.

Section II: Personnel Entry for Tank Cleaning Preparation

The tank is not properly ventilated, resulting in high concentration.

Ensure ventilation for more than 24 hours before entering the water tank.

b. Prior to entering the tank, concentration must be tested.

2. Entry into confined spaces may lead to unexpected incidents.

a. Sufficient staff remain outside the water tank

3. The internal structure of the water tank is diverse and prone to accidents such as collisions and slipping.

Employees must wear rain boots, a hard hat, and have a waterproof flashlight ready.

b. Prepare a first-aid kit