I've been testing the water from my RO unit throughout the day for a week or so now. I do it when I notice that my topoff unit kicks in. When it does kick in it puts water into the sump for about 5 seconds and then shuts off. The TDS of the water coming into the tank ranges from 65 to 150ppm. Not good. If it were to run for a good minute or two it would be great as after running for 15 seconds it gets back down to 0ppm. But the way it's going right now it's adding crappy water to my sump.
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