LMBO. Well I grew up drinking a lot of unfiltered TDS maybe that's why I'm so crazy and waste big dollars on the tank like a dummy. I heard the RO water will test with a higher TDS after sitting a bit but we all let it sit anyhow. Reef crystals instant ocean salt water says it neutralizes metals since everyone freaks out about them. That always gives me a warm comforting feeling in my belly especially if I decide to run up the TDS