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Poolking, your best swimming pool equipment manufacturer and supplier with more than 20 years experience.   ​​​​​​​  Email: sandy@poolking.co

How the filter is backwashed?

The tubular backwash filter is provided with a plurality of filter tubes inside, and the sewage flows from the outside of the filter tube to the inside of the filter tube, and then flows out from the liquid collection chamber of the filter. The control adopts pressure difference/time control. When the pressure difference between the inlet and outlet of the filter reaches the set pressure difference limit, the filter enters the reverse flushing process.

In order to ensure the good operation of each filter tube, the control system closes the corresponding inlet valve and outlet valve according to the pressure difference at both ends (up to 0.1MPa) or when the filter tube reaches the specified self-cleaning time (for example, 120min), and simultaneously opens the corresponding water inlet valve and outlet valve. drain valve and backwash valve.

The cleaning fluid connected to the backwash pipeline thoroughly cleans the filter tube from top to bottom, and is discharged through the sewage pipeline, then closes the sewage valve and the backwash valve, opens the water inlet valve and the water outlet valve for normal filtration, and the control system continues to the next The filter tube performs a backwashing action to circulate. When the control system performs the backwashing action on each filter tube, the water inlet valve and the water outlet valve corresponding to the other filter tubes are open to ensure the normal filtering operation of the remaining filter tubes.Poolking.

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a. Power failure or motor protection tripped
b. Pump doesn't vent
c. Pump doesn't fill the water
d. Suction line/hose leaking
e. Transparent cover not properly installed - check filter basket - even bolts
f . Inlet suction process is too large g.) Total resistance loss exceeds the allowable range of the pump - recalculate the required pressure
h. Mechanical shaft seal leakage
Wholesale Best workmanship Supplier with good price - Poolking
Poolking Wholesale Best workmanship Supplier with good price - Poolking
Poolking Best workmanship Supplier
----Yes, they can. Silica sand is mainly used for filtration, while activated carbon is mainly used for adsorption. Silica sand is effective for higher water quality requirements. When use them together, silica sand should be placed on the bottom layer, and then activated carbon should be filled on the sand, but the cost of using two media is much higher.
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Contact: Sandy

Email: sandy@poolking.co

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Add: No. 80, Danan North Road, Dagang Village, Dagang Town, Nansha District, Guangzhou City (temporary business premises)

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