How should swimming pool water treatment equipment be chosen correctly? This is a question that every swimming pool needs to know in the early stages of construction. Because once the equipment is selected incorrectly, it will not only affect the filtering effect, but also increase the difficulty of maintenance. This article provides a complete set of design schemes for users of swimming pool cleaning equipment, you can learn step by step, reference installation.

Step 1: Installation of the pool circulating water treatment system

1. The whole circulating water treatment equipment system is composed of 3 circulating pumps, 2 filters, 3 dosing pumps, 1 electric control cabinet and 1 submersible pump.
2. 3 2HP pool circulation pumps are the main power of the entire circulation system.
3. The sand filter cylinder is mainly composed of a cylinder and a multi-way valve, the cylinder plays the role of filtering water, the multi-way valve is the conversion of the six functions of the whole system.
4. Three dosing pumps add copper sulfate solution, flocculant solution, disinfectant and acid base power pump respectively.
5. The electric control cabinet is the power control center of the whole system, with manual and automatic conversion functions.
6. Submersible pump is used for room water collection and emptying, swimming pool is equipped with emptying power.

Step 2: Pool cleaning equipment water treatment process

• Normal filtration: The multi-way valve is placed on the function key 1 (FILTER), open the main inlet valve, the circulating pump before and after the valve and the outlet valve, start the circulating pump and dosing pump, and filter. When filtering, the reading of the pressure gauge should not be greater than 0.3MP. If greater than 0.3MP, the number of working units of the circulating pump should be reduced, and the filtration time is 6 to 8 hours.
• Backwash (discharge filter sand cylinder fouling): The multi-way valve is placed at function key 2(backwash), open the main inlet butterfly valve, the front and rear circulation pump valve, start the circulation pump, backwash, if the filter pressure gauge is greater than 0.3MP, you must backwash.
• Backwash (discharge of residual dirt in the pipeline): The multi-way valve is placed on the function key 3 (RINSE), the operation mode is the same as 2.
• Direct drainage without filtration: Put the multi-way valve on the function key 4 (WASTE), open the main inlet valve, the valve before and after the circulating pump, start the circulating pump, and directly drain the water.
• No filter cycle: The multi-way valve is placed on the function key 5(circulating water) to open the main inlet valve, the front and back valves are connected with the circulating water pump and the outlet valve, and the circulating water pump is started, and the water is circulated without the filter.
• Swimming pool drainage (turn off the filtration function): Put the multi-way valve on the function key 6 (CLOSE), open the main inlet valve, the butterfly valve before and after the circulating pump and the butterfly valve of the exhaust pipe, and directly discharge. When the pool water is emptied with the included pipe, all functions of the circulatory system are shut down.
• In order to ensure the normal operation of the multi-way valve, the water pump should be turned off before each adjustment.

Step 3: Precautions for dosing and disinfection

1. To pay attention to safety, wear rubber gloves.
2. Solid drugs should be dissolved before being put into the dosing bucket.
3. The filter cap of the dosing pump should be cleaned regularly to avoid blockage.
4. Dosing pump prohibited disassembly.

Step 4: Use and precautions of electric control cabinet

Electric control cabinet

The electric control cabinet controls the main power supply of the entire system. With circulation pump automatic start function and manual start function. The bottom light and dosing system are manually started and controlled, and the start and stop of submersible pump are controlled by automatic water level controller.

Precautions for use

The cabinet should be kept clean, dry, not be wet, often check whether the function of the electrical components is normal, non-staff prohibited contact, so as to avoid misoperation and cause casualties.

Step 5: Selection and installation of pool circulation pump

General swimming pool circulation pump, circulation pump using water centrifugal pump, can be divided into ordinary water centrifugal pump and swimming pool special circulation pump. The following is a brief introduction to the selection and installation of swimming pool circulation pumps.

Pool circulation pump selection

1. The choice of swimming pool circulation pump uses a water pool with similar properties, and other circulation pumps should be set independently. The use of different swimming pools, swimming pool equipment requirements are different, the pool water circulation pump should be set up independently. Not less than two circulating pumps working simultaneously to determine the quantity.
2. Circulating water pump should choose a low speed, low noise, high efficiency water pump, the performance curve should be as smooth as possible, the working range must be located in the high efficiency area.
3. The pump shell, impeller and mechanical seal of the circulating pump should be made of corrosion-resistant materials. The circulating water pump and the pipeline connected with the water pump shall be provided with shock and noise reduction measures. Circulation pump suction pipe flow rate should be 1.0~1.5m/s; The flow rate of the outlet pipe should be 1.5 ~ 2.5m/s.

Installation of swimming pool circulation pump

• Installation of swimming pool circulation pump. The construction and installation of circulation pump should meet the requirements of the specification.
• The circulating pump foundation shall be constructed according to the design drawings, the solid motor anchor bolt shall be firmly combined with the concrete foundation as a whole, the embedded hole shall be cleaned before pouring, the bolt itself shall not be skewed, and the mechanical strength shall meet the requirements.
• The base should have a shock-absorbing rubber pad, which is in close contact with the surface of the base, and the shell should have separation bolts and thermal penetration plating. Pressure gauges and valves shall be installed at inlet and outlet. The pump is connected to the motor drive shaft, allowing the axial and radial errors not to exceed the specified values.
• Pipeline connection: The reducer pipe is directly connected to the water pump, and the pipeline is installed after the water pump is positioned and stabilized.
• The pipeline should be consistent with the circulating water pump and valve flange, the direction of the valve installation handle should be easy to operate, the elevation should be consistent, and the pipeline layout should be neat. Electrical connections: all-round protection to prevent accidental contact, the junction box should be suitable for flexible connections.

Step 6: Maintenance of the pool water cleaning system

1. Pool Cleaning System: The pool cleaning system is a dirt absorption system around the pool body. The peripheral suction system is manually operated by the main circulating pump.
2. Pipeline maintenance: The circulating water pipeline is made of UPVC. Avoid contact with hard or sharp objects, and do not climb or step on the pipes; keep the pipe wall clean.
3. Valve: When not in use, do not move at will, minimize the number of operations, extend its service life.
4. Filter (sand filter cylinder): Avoid hard object impact, do not pull the multi-way valve at will, pull the multi-way valve should be accurate posture and gesture, check the sensitivity of the pressure gauge, keep the pressure gauge surface, water mirror and multi-way valve function keyboard clean.
5. Circulating water pump: Circulating water pump should be regularly maintained, add lubricating oil, keep the pump body clean, and regularly clean the filter element.
6. Pool wall light: Remember to open the pool wall light when the pool is full of water.