Marg4581 Posted April 23, 2010 Report Share Posted April 23, 2010 Just got my kit finally and can't decide on the chlorine test if I need to use a 25ml sample or a 10ml. I really can't figure out what the difference is.I hope someone can help. Thank you I have a 300 gal. hot tub as you can tell I'm new to this have been reading post here for a few weeks and have learned alot thanks to all of you. Quote Link to comment Share on other sites More sharing options...
highmark800 Posted April 23, 2010 Report Share Posted April 23, 2010 I use the 10 ml water sample. It will be in .5ppm increments per drop but that way I use less drops. The larger sample would be in .2ppm drop increments, more acurate but also more drops per sample and I test my water evry day with the Diclor/ bleach method. Quote Link to comment Share on other sites More sharing options...
polyvue Posted April 23, 2010 Report Share Posted April 23, 2010 Just got my kit finally and can't decide on the chlorine test if I need to use a 25ml sample or a 10ml. I really can't figure out what the difference is.I hope someone can help. Thank you I have a 300 gal. hot tub as you can tell I'm new to this have been reading post here for a few weeks and have learned alot thanks to all of you. Highmark (who uses the low mark!) has summed it up pretty well. Most of the time, discerning the amount of FC (Free Chlorine) and CC (Combine Chlorine) to within 1/2 half of a ppm (.5 ppm) works out fine. If you like to have a little more precision use the high level (25 mL mark) and multiply the number of drops R-0871 need to turn the sample clear by .2 instead of .5. Of course, you''ll use more titrant that way. Quote Link to comment Share on other sites More sharing options...
JimKW Posted April 25, 2010 Report Share Posted April 25, 2010 I just had the exact same question. Nice to have a website I can come to and get an answer immediately! Quote Link to comment Share on other sites More sharing options...
Marg4581 Posted April 25, 2010 Author Report Share Posted April 25, 2010 I just wanted to say thank you for your help. I agree this site has answered alot of questions for me the last 2 weeks there is a wealth of knowledge here if you will just look so thanks to all who have contributed it is a great place. Oh yes the Dichlor/Bleach method is the best ever!! Quote Link to comment Share on other sites More sharing options...
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