RO unit confusing me


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Hi guys. I have a RO unit with a 3 month old membrane. This weekend I setup a new tank and ran the unit for 30 hours or so. I usually get tds of 1-2 (our tap water in harties isnt very clean). By the end of the weekend the RO water was sitting at 40tds. I replaced the resin, particle filter and carbon filter and I rinsed the membrane. But now the water is at 18tds and not 1-2. Surely I couldn't have finished the RO unit so quickly?
 
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Not sure if this will help but when you start your RO don't use the first few liters of water. Let it run for 10 or 15 min take a sample and test it and see if it drop
 
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Not sure if this will help but when you start your RO don't use the first few liters of water. Let it run for 10 or 15 min take a sample and test it and see if it drop
Thanks. It seems asif it has returned back to 1-2ppm after making about 25 litres of water.
 
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You should always flush the unit when using it after letting it stand for a while
 
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