The specific operation sequence of various functions of the water treatment filter sand tank

1.1 Check before starting the filter function Before starting the machine, adjust the multi-way valve of the filter sand cylinder to the filtering state; check whether the corresponding valves on the pipeline are in the correct state. Check whether the hair collector is blocked, and if so, clean it first; check whether there is air in it, and if so, drain the air first; Tighten the lid of the tank to make it tight and airtight; check whether the medicine liquid pipe of each dosing system is normal and not blocked, whether there is still medicine in the medicine barrel, and whether the valve on the mouth of the dosing device has been opened to ensure that the dosing system is in the ready state ; Check whether there is air accumulated in the main return water pipeline, and if so, it must be removed through the drain valve. Turn on one water pump motor first in the starting sequence; after the water pump motor is running normally, turn on the water pumps in turn, and the standby pump does not need to be turned on; after starting up, check and record the pressure gauge index on the filter to check whether backwashing is necessary; The operation is stable and there is no noise; check whether each dosing system is operating normally; go to the swimming pool to visually check whether the water is normal from each water injection port.

1.2 Check the backwashing function before starting up 1. If the reading of the pressure gauge on the filter sand tank is higher than 2.5kg/cm2 or above, you need to backwash the filter sand tank immediately; the relevant water pumps that need to backwash the sand tank have stopped running ;2. Adjust the multi-way valve on the filter sand cylinder to the backwashing state; confirm that the relevant valves on the pipeline are in the correct position. The backwash sequence first runs the water pump; checks and observes the clear water mirror on the sand tank until the water is clean; then turns off the water pump. Note: If it is impossible to check the backwash water, the duration of each backwash is preferably 2-3 minutes.

1.3 Rinsing function check before starting 1. Confirm that the backwashing has been completed; confirm that the water pump is turned off; adjust the multi-way valve on the filter sand tank to the rinsing state; confirm that the relevant valves on the pipeline are in the correct position; ; After the water pump runs for 1 to 2 minutes and sees the clear water mirror, turn off the water pump (the water is clear as the criterion). 1.4 Check the drainage function before starting up 1. Adjust the multi-way valve on the sand tank to the drainage state; 2. Confirm that the relevant valves on the pipeline are in the correct state; 3. Check whether the hair collector is blocked, and if so, it must be cleaned first ; Check whether there is air in it, and if so, the air must be drained; 4. Check whether the tank cover is tight and air-tight, if there is air leakage, the tank cover must be tightened to make it tight; 5. Check the main return pipe If there is air accumulated in the water, it must be drained through the exhaust valve; 6. If there is an overflow return pipe, please close the main valve on the overflow return pipe; Note: During the drainage process, please try to prevent the water pump Work interruptions occur. 1.5 Circulation function inspection before starting 1. Before starting the machine, adjust the multi-way valve of the filter sand cylinder to the circulation state; 2. Confirm that the relevant valves on the pipeline are in the correct state; 3. Check whether the hair collector is blocked, and if so, remove it. Clean it up first; check whether there is air in it, and if there is air, the air must be drained; 4. Check whether the lid of the tank is tight and air-tight, if there is air leakage, the lid must be tightened to make it tight; 5 . If there is an overflow return pipe, please close the main valve on the overflow return pipe; 6 Check whether other equipment is in good condition.

After starting up, check: whether the water pump is running normally; whether other related equipment is running normally. 1.6 Shutdown function Turn off the water pump, shut off all the water flowing to the sand tank or swimming pool (close the sand tank), and adjust the multi-way valve of the filter sand tank to the closed state. Poolking is the best swimming pool equipment manufacturer and supplier in China. Poolking exists to provide the highest quality swimming pool equipment while offering competitive pricing..