Re- [Ponds-Koi] WATER?!? YEH, RIGHT!
According to Hach’s own website, their test strips are only “semi-quantitative” compared to their other testing kits and meters. “Semi” being the operative word.. meaning half.. like they’re only half right. So if you test twice, one of the strips is accurate.. but which one? Should you then do best out of three.. or five.. or??? http://www.hach.com/hc/static.template/templateName=HcGuides.HcTestKitsGuide ..html
Here’s their own words for their product descriptions from their Test Kit Reference Guide…
Test Strips - Choose Hach test strips for semi-quantitative process checks or spot testsanywhere and any time you need them.
Drop Count Titration Kits - Drop count procedures provide a low-cost method for titrimetric determinations. Typical accuracy is ± 1 drop for titrations requiring up to 20 drops and ± 5% for titrations requiring over 20 drops.
Instrument Based Kits - Colorimeter-based kits provide the highest level of accuracy and repeatability. Pre-programmed for easy use, Hach’s single-parameter field colorimeters provide years of reliable service.
So… if Hach also agrees with me and others out here… do you believe it now?
Besides the higher accuracy level of test kits that use test tubes and reagent drops, their cost per test is actually much lower compared to the test strips. If you can afford the testing instruments, that would probably be the best bet.. and those might just impress the neighbors.
One last note… when I want to impress the neighbors, I don’t pull out my test kits! LOL
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com
Category: Philippines Internet Koi Society
