First post here so be gentle
I have been using Salifert test kits for years. I wanted to have a back up testing procedure so I purchased a Hanna dKH test. I received the Hanna checker this Friday so I ran one test to familiarize myself with the procedure. I got a reading of 7.4 dKH (which is low for what my Salifert results tend to be). I normally test my parameters every weekend, so I re-tested again yesterday during my normal testing time. My results were Salifert 8.75 / Hanna 7.5 dKH. My last 3 Salifert weekly test result have been fairly consistent at 8.9 , 8.3 and 8.75 yesterday, and the two Hanna results were close 7.4 , 7.5
So, not trying to make this a flaming thread, why the difference? which one do I put more trust on?
Do any of you use Salifert and Hanna and get close results to each other?
Thank you in advance.
PS. Salifert kit is fairly new/not expired and I swirled the Hanna reagent before using in case of settling/separation.
I have been using Salifert test kits for years. I wanted to have a back up testing procedure so I purchased a Hanna dKH test. I received the Hanna checker this Friday so I ran one test to familiarize myself with the procedure. I got a reading of 7.4 dKH (which is low for what my Salifert results tend to be). I normally test my parameters every weekend, so I re-tested again yesterday during my normal testing time. My results were Salifert 8.75 / Hanna 7.5 dKH. My last 3 Salifert weekly test result have been fairly consistent at 8.9 , 8.3 and 8.75 yesterday, and the two Hanna results were close 7.4 , 7.5
So, not trying to make this a flaming thread, why the difference? which one do I put more trust on?
Do any of you use Salifert and Hanna and get close results to each other?
Thank you in advance.
PS. Salifert kit is fairly new/not expired and I swirled the Hanna reagent before using in case of settling/separation.