CountThis Posted March 29, 2009 Report Share Posted March 29, 2009 I bought a cheap-o OTO FC/PH drop test kit while I wait for my Taylor K 2006 to come in the mail. The test tube calibrations only go up to 5 ppm Cl. Instructions say to add 5 drops of OTO to get the reading. How do I measure higher FC concentrations than 5 ppm using the same drops and test tube? Thanks! Quote Link to comment Share on other sites More sharing options...
cofive Posted March 29, 2009 Report Share Posted March 29, 2009 I bought a cheap-o OTO FC/PH drop test kit while I wait for my Taylor K 2006 to come in the mail. The test tube calibrations only go up to 5 ppm Cl. Instructions say to add 5 drops of OTO to get the reading. How do I measure higher FC concentrations than 5 ppm using the same drops and test tube? Thanks! Usually you can dilute the sample by substituting 50% of the quantity with tap or bottled water and then multiplying the results by 2. If using tap water, be sure to know if it contains chlorine. Quote Link to comment Share on other sites More sharing options...
CountThis Posted March 30, 2009 Author Report Share Posted March 30, 2009 O..... guess I'll have to find something to measure out half the water though. Thanks for the reply :-) Quote Link to comment Share on other sites More sharing options...
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