Huly March 22, 2013 Share March 22, 2013 Who carries TDS Test? We want to get one since we are setting up a RODI unit this weekend Link to comment Share on other sites More sharing options...
wade March 22, 2013 Share March 22, 2013 TDS is tested by a little hand-held meter. I got one free from Air Water Ice with my last filter order. They are usually very cheap. I have an old one as well, although I don't know if it works properly. Link to comment Share on other sites More sharing options...
STEVE March 22, 2013 Share March 22, 2013 I have one I am going to sell...It's like brand new,only had it 2 months,used it 2 times. PM me if your interested Link to comment Share on other sites More sharing options...
STEVE March 22, 2013 Share March 22, 2013 http://www.marinedepot.com/HM_Digital_Waterproof_EC_TDS_Temp_Combo_Meter_Single_Item_Monitors_Controllers_for_Saltwater_Aquariums-HM_Digital_Inc.-HB00000-FITEMOID-vi.html Link to comment Share on other sites More sharing options...
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