I think i am in need of a new RO membrane. My 4x40 membranes seem to not be doing nearly as well as they formerly did. We have 400 to 900 tds water here. Is there one brand that is better?
We have a heavier TDS as well… From tap close to 500ppm but well water is through the roof. I have not seen a difference in RO membranes. What we have done to save them is soak them in pure water over night, I had recommended to me once to put pure water in the bathtub and let it soak over night. It does help prolong a little longer but is a pane in the keister.
What kind of pre-filtering do you have prior to the RO (we have a 4.5x10" sediment and 4.5x10" carbon)? I have found changing out the sediment more often, sometimes monthly or sooner in heavy usage, helps the RO last another 6-8 mos. unfortunately we still have to change ours every 12-18 mos.
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I use 2? X10 carbon and 2x10 sediment. Maybe i should look at upgrade? I have also been thinking of upgrade to a new system that can handle this water with ease
Keeping fresh pre-filters is good, but with the ridiculously high TDS we have (500+ in many places, 1100 at one home!), replacing our RO every year seems inevitable. I run soft water through mine 95% of the time but I still had to replace it after 12 months.
Change out the sediment filter weekly if need be, once the sediment filter is full then all that junk goes to your RO. A bigger system with larger filters will probably help. But, honestly what really helps is to stop processing your pure water all over your service area. I strongly suggest carrying your water prefiltered in a tank. Our filters are lasting longer since we started that, we try to filter either at my place or a larger job while working. This has helped in preventing so much iron from getting our filters clogged as fast.
i have been very happy with my wash it pro ( and still am) but was doing some related research and found a water filtration company called buckeyehydro.
he started laughing when he looked at my wash it (online). his concern was mainly with the size of the carbon filter which he said for the size of the RO should be at least as big as the DI tank. he says the carbon will wear out quickly but even a new filter will allow chlorine to pass if it is too small as there is a time requirement for the carbon to absorb the chlorine. the chlorine will eat holes in the ro quite quickly.
he also commented that the pressure we are running from a tap is likely about half what even a low pressure ro filter would want.
without knowing the specs for my carbon cartridge and the chlorine content in the water he could not tell me how long my carbon filter would last but it could be as little as A FEW HOURS!!! i am ordering a chlorine tester HI701 Free Chlorine Checker - Buckeye Hydro
(it’s the free chlorine you want to measure).
test strips for chorine are also available at pool supply places but you must be sure they are capable of measuring below 1 ppm.
beautiful view has a good maintenance video showing that if you run di water into your ro it will help it last but this will have no effect on chlorine damage as the di does not remove chlorine.
