15 Installation & Maintenance Attention: 1. Please replace the cartridge in turn and make sure in right position. 2. The cartridge life will be different according to the area, water quality, season and working time. Please change them in time as actual usage Maintain the RO system ♦When cleaning the RO system, do not use soap, detergent and strong volatile solvent like thinner, gasoline and alcohol, it will cause the cracks and color change. ♦ Do not wash the system directly in water.
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