OK. So I boogered up a with my last bit of reagent. I carried my test kit to work and was checking a co-workers pool sample. His CYA was very high so I attempted to modify the procedure and used up my last bit of reagent. (I only had enough for one test and didn't realize it) So what I did was filled to bottom mark with pool water, top mark with reagent. Then poured half out and filled back to top with pool water. Still high. So I emptied back to bottom mark. Filled to top mark with pool water and rechecked. Still high. Only after the fourth drain and refill with pool water was I able to read 100 on the CYA. Then I checked the "extended test instructions" and duh, realized I was supposed to dilute with tap water. By my calculations I ended up with 96.875% pool water / 3.125% reagent. So can the results be interpolated with my incorrect testing?