Hi all
Recently I have bought a RO unit and have been using a hma filter for before that. When checking the PH and tds since I started they have both dropped but the PH seems to rise again? The tds was 450 which I know is very high but since then it's down to 230. The PH was 8.4 and after water change drops down to 8.0-8.1 then comes back up? I've heard that the PH should start lowering when the tds get below 150? Can you lower tds to fast if the ph isn't changing? Also would you add RO right to the RO water or add the hma water to it? When adding back to RO water what tds should I aim for? I know it's a lot if questions but I'm starting to feel dizzy thinking all this RO/hma/tds/ph/kh !!!! Lol
Regards
Ricky
Recently I have bought a RO unit and have been using a hma filter for before that. When checking the PH and tds since I started they have both dropped but the PH seems to rise again? The tds was 450 which I know is very high but since then it's down to 230. The PH was 8.4 and after water change drops down to 8.0-8.1 then comes back up? I've heard that the PH should start lowering when the tds get below 150? Can you lower tds to fast if the ph isn't changing? Also would you add RO right to the RO water or add the hma water to it? When adding back to RO water what tds should I aim for? I know it's a lot if questions but I'm starting to feel dizzy thinking all this RO/hma/tds/ph/kh !!!! Lol
Regards
Ricky