As everyone knows the CYA test in the Taylor kits leaves a lot to be desired. Recently I found a Hach DR/850 Colorimeter ($20.00 at a public auction --- Local lab went belly up) . I bought the appropriate reagent from Hach ($17.00 for 50 powder pillows) and ran my first test using both methods. I was amazed at the differences in the results.
I have both the Taylor kit and the Rainbow lifeguard, both showed <20 PPM but the Hach colorimeter result was 35 PPM. I ran a standard using the method in the Hach procedure manual and zeroed the instrument.
Which result should I believe.
This instrument is way over kill for the pool but I wonder what other tests (Pool related) it might be good for.
I have both the Taylor kit and the Rainbow lifeguard, both showed <20 PPM but the Hach colorimeter result was 35 PPM. I ran a standard using the method in the Hach procedure manual and zeroed the instrument.
Which result should I believe.
This instrument is way over kill for the pool but I wonder what other tests (Pool related) it might be good for.