Q: Is a single 1*400GPD system superior to two 2*200GPD systems?
A: Opting for the 200GPD system is advantageous. It reduces 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 if any of the following conditions occur:
A decrease of 10-15% in the normalized permeate flow.
An increase of 10-15% in the normalized permeate total dissolved solids (TDS).
An increase of 10-15% in the normalized pressure drop between feed and reject.
Q: What are the steps to resolve RO Membrane Blockage effectively?
A: 1. First, verify if the home RO System membrane is genuinely blocked.
2. Evaluate the local water quality to identify 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), in conjunction with a specialized RO membrane cleaning agent based on scale composition. Immerse the RO membrane in this solution for 24 hours.
4. After soaking, thoroughly rinse the RO membrane. Use water produced by ultrafiltration for rinsing. During this procedure, keep the pure water outlet closed and open only the wastewater outlet.
Q: Why does the RO membrane experience blockage within one to two months?
A: 1. Raw water with high salt content can lead to excessive scale formation.
2. The organic matter content in the water might exceed safe standards, resulting in fouling and clogging of the RO membrane.
3. A high RO film recovery rate can also 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.