Precautions for aquaculture wastewater treatment equipment: 1. The equipment should be tested according to the trial operation method before use, and can only be put into normal use after trial operation. 2. First, run the equipment, that is, the dissolved air system, for 5-10 minutes, and then send in the flocculated sewage. The amount of sewage gradually increases from small to large until it reaches full load. 3. When stopping the operation, the water inlet of the air flotation should be turned off first, and the equipment should be running for 10 minutes before stopping the working water pump and gas pump. Place the selection switch of the foam scraper in the manual position. 4. During the operation of the equipment, regular attention should be paid to whether it is running normally. If any problems are found, the operation should be stopped in a timely manner for inspection. 5. Regular refueling is required for water pumps and air compressors. Please follow the user manual of the product for maintenance and upkeep. 6. It is strictly prohibited to place hands or other objects on the track during the operation of the foam scraper. 7. After running for a period of time, the air flotation tank should be cleaned. It can be flexibly applied according to the actual situation. 8. When the water pump is stopped, the water inside the pump should be emptied, and attention should be paid to antifreeze in winter.