Reverse osmosis system, to be installed in the feeding line, is designed for desalination of water entering into the swimming pool. Besides, the reverse osmosis system provides deep water purification from heavy metals, chloroorganics, hardness salts and other harmful impurities. The system operates automatically. Reverse osmosis system must be equipped with cartridge filters of fine mechanical cleaning.
In the reverse osmosis system, water is fed at high pressure (10-12 bar) to the membrane elements, where flow separation for permeate (demineralized water) and concentrate (water with high salt concentration) occurs. Demineralized water is directed into the swimming pool and the concentrate is discharged into the drainage tube.
Reverse osmosis membranes are exposed to contamination by hardly soluble compounds that results in deterioration of their performance and reduction of productivity. Periodic chemical washings with special chemical reagents and in accordance with the procedure recommended by the membrane manufacturer are performed to restore the membrane performance The degree of contamination of the membranes and frequency of washings are determined by quality of water to be treated and degree of its preliminary treatment.
In order to save capital and operating costs, the performance of the reverse osmosis system must exceed the water evaporation losses for not more than 30-40%.
So, in the swimming pool, with volume of 150m3 and surface area 100 m2, water evaporation losses amount to 200 - 300 l/day (2-3 l/day x m2).
Having installedthe reverse osmosis system, with productivity of 400-500 l/day, in additional feeding line, we will get a tendency of permanent decrease of solid content of water in the swimming pool. Therewith, in case of necessary rapid recharge (e.g., after washing of filters), the water in the swimming pool should be fed by the main feeding line.
Silver ionizer.
Silver ionizer is installed after the reverse osmosis system in the additional feeding line and is designed for the preservation of water by ions of dissolved silver, increasing its resistance to bacterial contamination. Silver ions effectively prevent the "blooming" of water in the swimming pool, obtaining of musty smell and taste, formation of slime (biofilm) on the swimming pool walls. Silver ionizer is activated / deactivated automatically depending on the water flow.
- Consumed power – 10 W
- Tension – 24В
- Dose of inputting silver – 0,01-0,02 mg/l
- Service life of silver electrodes – 6 years