Q: Is a single 1*400GPD system superior to a dual 2*200GPD setup?
A: Choosing the 200GPD system offers several advantages, including reduced adhesive use during manufacturing, which markedly boosts salt rejection rates and promotes optimal water flow efficiency.
Q: When should membrane elements undergo cleaning?
A: It is essential to clean the membrane elements when the following conditions are observed:
A noticeable decrease of 10-15% in normalized permeate flow signals the necessity for a cleaning.
An increase of 10-15% in normalized permeate total dissolved solids (TDS) is a clear indicator for cleaning.
A significant 10-15% rise in normalized pressure drop between feed and reject streams indicates the need for cleaning.
Q: What are the steps to resolve RO membrane blockage?
A: 1. Verify if the membrane in your home RO system is blocked.
2. Assess the local water quality, identifying if calcium and magnesium salts are the main scaling components.
3. Prepare a cleaning solution with 10% hydrochloric acid or a commercial descaling detergent, combined with a specialized RO membrane cleaning agent according to the scale composition. Soak the RO membrane for 24 hours.
4. After soaking, thoroughly rinse the RO membrane using ultrafiltration-produced water. Keep the pure water outlet closed and the wastewater outlet open to ensure effective flushing.
Q: Why does RO membrane blockage occur within one to two months?
A: 1. Elevated salt content in raw water leads to excessive scaling, causing blockages.
2. Elevated levels of organic matter in the water surpass acceptable standards, leading to RO membrane fouling and eventual blockage, compromising the system's efficiency and reliability.
3. This exceptional RO film stands out with its remarkable recovery rate, guaranteeing optimal performance and superior efficiency, making it a standout choice for water purification needs.
4. A notable disadvantage of the purifier is its lack of a flushing function, which results in the gradual accumulation of high-concentration brine within the RO membrane shell. Over time, this can potentially affect both the longevity and effectiveness of the system, posing a challenge for sustained performance.
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