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Yes...you did

The higher concentration means less bleach needed to add to maintain FC levels. See the Pool math chart. If you had, for instance 12% concentration, your bleach added would be 1/2 the amount needed to maintain FC levels. So if the price of that 12% bleach was double the 6% price, it is costing...

Is there a way of testing their chlorine to know what the actual % is?

Is there a way of testing their chlorine to know what the actual % is?

Well, without redoing the reagent part, would you not always get the exact same result....by pouring back your result from the graduated cylinder back to the bottle and then back to the graduated cylinder, why would the result be any diff? Am i missing something very obvious? :confused:

Tim5055, just so i am clear on your post, when you say "Once the solution is prepared you can pour it back and forth between the bottle and tube over and over to get a better reading. My wife & I will do it a few times to verify our reading." do you mean you take the recorded sample out of the...

Got it......hate the thought of draining what seems like 75% of the water after getting all my other #'s into a nice area, and shocked the pool and got a FC reading of 30, and worse of the worse, the wife wants to go into the pool this weekend. But if I have to bite the bullet....I guess I need...

So i have been reading this thread with great interest. Regarding reading CYA levels with the Taylor K-2006 kit...my black dot goes away way before i even get close to the 100....so i was wondering how one even calibrates what their CYA is so that you can do the rest of the calculations for good...