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Water from the tap is about 350 TDS, pressure is good but I am in a hard water area.I have not changed the prefilters, is that a good place to start ?
I agree you should find out what the TDS is coming out of the RO but before the resin. Mine comes out about 14 with a tap tds at 280. If it is in the 30's then you really do have to get a new RO. But the main problem I see for you is that the prefilters aren't doing their job or not changing them enough which is knackering your RO too soon. I have a Brodex system which is simply superb. However when I bought it they only have one prefilter fitted which was either a sediment or a carbon. It's not sufficient and reported back to them. So I swapped over to the fibredine which does protect the RO much better and you don't have to change them so much either, hence the RO should last 1 and a half to 2 years. I go through about 1500 to 2000 litres per week. Hope it helps!Cheers Chez
My system is just over 12 months old and have noticed I am having to change resin about once every three weeks to keep TDS under 5, I am gradually doing more work as I build up my round but when I first got my system I went for 6 months before needing to change resin. I am flushing system once a week but not for the hour that the manufacturer recommends as it seems over the top. Does this mean I need to change my membrane, the system is from Brodex (yes I know) they want £285 for a new membrane, can they be got cheaper from another supplier.Thanks for any advice guys.
Quote from: chez on September 25, 2014, 05:04:59 pmI agree you should find out what the TDS is coming out of the RO but before the resin. Mine comes out about 14 with a tap tds at 280. If it is in the 30's then you really do have to get a new RO. But the main problem I see for you is that the prefilters aren't doing their job or not changing them enough which is knackering your RO too soon. I have a Brodex system which is simply superb. However when I bought it they only have one prefilter fitted which was either a sediment or a carbon. It's not sufficient and reported back to them. So I swapped over to the fibredine which does protect the RO much better and you don't have to change them so much either, hence the RO should last 1 and a half to 2 years. I go through about 1500 to 2000 litres per week. Hope it helps!Cheers ChezThat's the problem Chez you think the Brodex is simply superb but at a tap tds of 280ppm there's no reason why you shouldn't getyour tds down to 3ppm.Also a membrane should easily last 5 years before breaking down especially with such a low tap tds.I certainly wouldn't class them as a superb system by any means.