What is the life of an Reverse Osmosis membrane?2540 type?

Question

OUR GROUND WATER IS 1500 PPM AND 2500 TDS AND AFTER DOING NECESSARY SOFTENING IT IS FED TO RO.
BUT OTHE RO MEMBRANE GOES OFF EVERY 6 MONTHS.
WHAT TO DO?

Answer 1

I have a 1 micron sediment filter before water enters the water softener, and use Rust Remover type salt in the brine tank. I've read that iron will clog the RO membrane quickly and it will need to be replaced. An alternative to get rid of any built up iron inside the softener is to pour a cup of vinegar into the solution, but not on top of the salt and force it to regenerate.

My RO system has been working flawlessly for over two years with the original RO membrane.

http://members.rennlist.org/warren/waterfilter.html

Answer 2

Filter first.