I had the Aquacheck strips from last year that i finished up and bought a new bottle. There's a big difference in readings from the last bottle to this one. The only kicker is my SWG agrees with last year's bottle. I had roughly 3000 ppm but now the new bottle says 2400+. I've checked with both bottles several times and I got the same results.
So, should i stay with the new bottles' strip results and change my swg readings manually, or should i get a third test of some kind and go from there?
I've stored the bottle inside, away from heat humidity on a shelf all winter. This year's bottle however, came in the mail when it was 95 degrees out with the sun shining on it in my mailbox. lol I wonder if that did anything?
Anyway, I did add 40 pounds of salt. I still wonder which test is right? Maybe that's why my readings have been off a little. I've read a few threads on the strips and believe them to be accurate, but I have to choose which one is the correct reading. My initial hunch is the current strips, but the old ones are less than a year old. I've not abused them in any way. I quickly retighten the cap as soon as I grab one strip out of the bottle and store it again.