There are two types of cleaning agents, one is for cleaning calcium and magnesium ions, this is for use in places with excessive water quality, and the other is for cleaning organic substances. It can be prepared by yourself, or you can go to Amazon to buy ready-made.
To clean calcium and magnesium ions, you can use citric acid or hydrochloric acid, citric acid is prepared into a solution of about 2%, (hydrochloric acid is adjusted to 0.2%) PH value is maintained at about 2 ~ 3, remember to use a PH test paper to test the PH value before use.
If cleaning organic matter, use 0.1% sodium hydroxide plus 0.025% sodium dodecyl sulfonate, mix with purified water and adjust the PH value to about 11-12.
Pay attention when cleaning RO membrane:
Only one solvent can be used at a time, not both solvents. Mixed-use will not only have no effect but also cause irreversible damage to the RO membrane. If you want to use both solvents, first wash with calcium and magnesium ion cleaning solution, usually about two small hours; after the cleaning is completed, rinse with clean water, and then rinse with organic cleaning solution.
Generally speaking, after cleaning with these two solutions, the water production of the RO membrane will increase significantly.
Of course, if the blockage is too serious, then simply use the booster pump to pump the reagent into the RO membrane shell, soak it for two hours, and then clean it. After cleaning, rinse the membrane with clean water.
Post time: Apr-29-2020