Hi Mohsan. I agree with many ...

Hi Mohsan. I agree with many other posters that UF can be effective at reducing much of the load and the ability to flush the UF membranes periodically is also important. If you are finding that the efficiency of the UF membranes is not where you wish to be (in terms of SDI value), you might want to consider using our own patented NanoCeram pleated filters as the final prefilter stage for protecting your RO membranes. Our filters exhibit an SDI value in the 0.5 to 1.0 range and can significantly improve the time intervals for cleaning the membranes. I've attached a file that might be helpful.