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Is there a filter out there that eliminates nitrates in tap water that also doesn't create waste water? I am currently using a sediment and 2 carbon filters to run my tap through to help with chlorine, Chloramines, and TDS but my nitrates are still 20-40 ppm. I'd love to somehow get those to 0 for my water changes. I don't really have a ton of interest in RO water bc of all the waste and my water bill is already ridiculous.
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