When Should the RO Membrane Be Changed?

Q9 When Should the RO Membrane Be Changed?

If pre-filters are changed properly and on time, the membrane will last at least two years. If you notice a gradual reduction in water production, it may be caused by a layering of minerals and salts on the membrane surface. If you notice a gradual deterioration in the quality of water being produced, this could be an indication of damage to the membrane, and it should be replaced.

(Note: A TDS tester can be used to test the quality of the feed and product water to give a more accurate indication of when to change the membrane.