- Aug 5, 2011
- 7
OK to come and find out there are 2 ways to test your combined chlorine levels, one way is to add 10ml to the Taylor K2006 tester and then add 2 scoops of DPD powder swirl and then add 871 reagent till it turns clear counting every 2 drops as 1ppm of free chlorine, now you add 5 drops of reagent 0003 to recolor the sample if combine chlorine is present if it turns pink of course 871 is used and for every drop it would be 0.5ppm of CC. Now my question stems from the Texas state limits which states 0.2 is the limits for pools, so I thought well heck i test and get .5 on every one drop, till I read the hand booklet with my test kit and noticed I can test a water sample of 25ml in the same manner and the 871 drops would count as .2 for every 1 drop. Now my question is that when I test with 25 ml in the tester I get a different result it isn't much less but its almost always .4-.6 lower then when I test with 10ml is there a reason for this and which is the best way to test 10 ml or 25 ml? Any suggestions or comments will be taken as constructive knowledge for me .