Q: Is a single 1*400GPD system superior to two 2*200GPD systems?
A: The 200GPD system is superior. It minimizes adhesive use during production, enhances salt rejection rates, and improves overall water flow efficiency.
Q: When should the membrane elements be cleaned to maintain optimal performance?
A: It is essential to clean the membrane elements when any of these conditions are observed:
A reduction of 10-15% in normalized permeate flow.
An increase of 10-15% in normalized permeate total dissolved solids (TDS).
An increase of 10-15% in normalized pressure drop between feed and reject.
Q: What are the steps to resolve RO Membrane Blockage effectively?
A: 1. First, confirm if the home RO System membrane is genuinely experiencing blockage.
2. Evaluate the regional water quality to determine if the primary scale components are predominantly calcium and magnesium salts.
3. Prepare a descaling solution with 10% hydrochloric acid or a diluted detergent, alongside a specialized RO membrane cleaning agent tailored to the scale composition. Immerse the RO membrane in this solution for 24 hours.
4. Thoroughly rinse the RO membrane post-soaking. Use ultrafiltration-produced water for rinsing, ensuring the pure water outlet remains closed, with only the wastewater outlet open.
Q: Why does the RO membrane experience blockage within one to two months?
A: 1. The feed water may have high salt content, leading to excessive scale buildup.
2. The water's organic matter content might exceed safe levels, causing the RO membrane to foul and clog.
3. A high RO film recovery rate can contribute to blockage.
4. The purifier might lack a flushing function. Over time, this results in high-concentration brine deposits within the RO membrane shell.