Hi,
I am currently using the 3-stage Crystal Pro that was purchased from Aquamarin many years ago. Few weeks back, I changed the resin and charcoal filter. However I noticed that the output water still reads 40ppm with TDS reader. This is still the same even I tried to reduce the flow to dripping, still achieving 40ppm.
And I think that’s reason why my hair algae is growing out of control. Like to seek opinion which is the recommenced filtering system to get now?
Is RO a must, or I can just use DI filtering?
Many thanks!
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