Q: Is a single 1*400GPD system superior to two 2*200GPD systems?
A: The 200GPD system is the optimal choice, offering reduced adhesive usage during production, superior salt rejection rates, and enhanced 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 observing any of the following conditions:
A 10-15% decrease in normalized permeate flow.
A 10-15% increase in normalized permeate total dissolved solids (TDS).
A 10-15% increase in the 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 indeed 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 tailored to the scale composition. Immerse the RO membrane in this solution for 24 hours.
4. Thoroughly rinse the RO membrane after soaking, using water produced by ultrafiltration. During this process, ensure the pure water outlet is closed and only the wastewater outlet is open.
Q: Why does the RO membrane experience blockage within one to two months?
A: 1. High salt content in the raw water may result in excessive scale formation.
2. The organic matter content in the water might exceed safe standards, leading to membrane fouling and blockage.
3. A high RO membrane recovery rate can exacerbate blockage issues.
4. The purifier might lack a flushing function. Over time, this results in high-concentration brine deposits within the RO membrane shell.