My first water test - opinions?

[Gracy101]

Sorry - then I didn't understand what the shot glass method is testing for I'm afraid. Isnt it the same as my little kit just allowing for a higher range of results?

On the instructions for the kit,it says the initial drop test with the OTO drops gives me a free chlorine reading within 10 seconds but only up to 5.0. Then you wait longer and it will give a total chlorine level. Then I assume do the math and get a CC reading.

I thought since the shot glass method allowed me a higher maximum range, if my FC number was 5.0 I would still be able to get a TC number. Is that not right?

[aylad]

Okay, my bad...it's been a few years since I used the hth OTO test, and at that time it only measured for TC. There was no distinguishable difference between FC and TC. So, in theory, yes you could read your results, multiply by two, then re-read and multiply and use the TC = FC + CC. However, you need to understand that the OTO test is really giving you a ballpark, and you lose a little of what accuracy you had by diluting--so I would not rely on that test kit to give you good CC numbers.

Janet