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45commando · 10/06/2017, 09:09 PM

I'm honestly amazed you were able to go 8 months & only get a TDS reading of 1-2. Even so at that point, the only thing you should be changing is the DI resin & possibly the sediment/ carbon block if flow is dropping.
So are you on City supply or well? If a City supply, it is possible there was a water line break & the City flushed the line with chlorine at high concentration, which has probably shot your RO membrane. If you're on a well, then maybe something has leached into your ground water. Is your house water pressure the same as always? Low pressure will allow more impurities to pass by the RO filter.

10/06/2017, 09:09 PM	#2
45commando Registered Member Join Date: Aug 2004 Location: Florida Posts: 1,321	I'm honestly amazed you were able to go 8 months & only get a TDS reading of 1-2. Even so at that point, the only thing you should be changing is the DI resin & possibly the sediment/ carbon block if flow is dropping. So are you on City supply or well? If a City supply, it is possible there was a water line break & the City flushed the line with chlorine at high concentration, which has probably shot your RO membrane. If you're on a well, then maybe something has leached into your ground water. Is your house water pressure the same as always? Low pressure will allow more impurities to pass by the RO filter. __________________ "It's not the size of the dog in the fight;It's the size of the fight in the dog!" -Sir Winston Churchill. Current Tank Info: 92G Corner tank, 250 wt 14K MH, 20G sump, 5G fuge, mixed reef