Q: Is a single 1*400GPD system superior to two 2*200GPD systems?
A: The 200GPD system is preferred. It reduces adhesive use during production, improves salt rejection, and enhances overall water flow.
Q: When should the membrane elements be cleaned to maintain optimal performance?
A: It is essential to clean the membrane elements when any of the following conditions are detected:
A decrease of 10-15% in normalized permeate flow signals the need for cleaning.
An increase of 10-15% in normalized permeate total dissolved solids (TDS) indicates a cleaning requirement.
An increase of 10-15% in normalized pressure drop between feed and reject necessitates cleaning.
Q: What are the steps to resolve RO Membrane Blockage effectively?
A: 1. Initially, verify if the home RO System membrane is genuinely blocked.
2. Analyze the regional water quality to identify if the primary scale components are calcium and magnesium salts.
3. Prepare a solution with 10% hydrochloric acid or diluted detergent (available descaling agents), along with a specialized RO membrane cleaning agent based on scale composition. Immerse the RO membrane in this solution for 24 hours.
4. Following the soak, rinse the RO membrane thoroughly. Use ultrafiltration-produced water for rinsing, closing the pure water outlet and opening only the wastewater outlet during the process.
Q: Why does the RO membrane experience blockage within one to two months?
A: 1. The raw water's high salt content may lead to excessive scale formation.
2. Excessive organic matter content in the water may foul and clog the RO membrane.
3. A high RO film recovery rate can contribute to membrane blockage.
4. The lack of a flushing function in the purifier can result in high-concentration brine deposits within the RO membrane shell over time.