Q: Is a single 1*400GPD system superior to two 2*200GPD systems?
A: The 200GPD system is the optimal choice. It minimizes adhesive use during production, boasts a superior salt rejection rate, and enhances 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 the following conditions are observed:
A decrease of 10-15% in normalized permeate flow indicates a need for cleaning.
An increase of 10-15% in normalized permeate total dissolved solids (TDS) warrants attention.
An increase of 10-15% in normalized pressure drop between feed and reject suggests required maintenance.
Q: What are the steps to resolve RO Membrane Blockage effectively?
A: 1. First, confirm if the home RO System membrane is genuinely blocked.
2. Evaluate the regional water quality to ascertain if the primary scale components are predominantly calcium and magnesium salts.
3. Prepare a solution with 10% hydrochloric acid or a diluted detergent (available descaling agents), along with a specialized RO membrane cleaning agent based on scale composition. Soak the RO membrane in this solution for 24 hours to ensure thorough cleaning.
4. Subsequently, rinse the RO membrane thoroughly post-soaking. Utilize water produced by ultrafiltration for rinsing. During this process, close the pure water outlet and open only the wastewater outlet to ensure complete flushing.
Q: Why does the RO membrane experience blockage within one to two months?
A: 1. The raw water might contain elevated salt content, which leads to excessive scale formation.
2. High organic matter content in the water can exceed safe standards, resulting in fouling and clogging of the RO membrane.
3. A high RO film recovery rate might contribute to the likelihood of blockage.
4. The purifier might lack a flushing function, which over time, results in high-concentration brine deposits within the RO membrane shell, causing blockages.