billsoukup

What chlorine levels are you running? I suggest you contact the manufacturer of your test kit and discuss this with them. Taylor, Lamotte and other manufacturers to have some thiosulfate in the pH reagents. We have, especially at times, found a large difference between Taylor (K2006) and Lamotte pH tests. One kit might read 8.0, the other might read 7.5. At one time we purchase a very accurate pH meter to see which test kit was more accurate. I don't want to post our opinion on this, buy you are more than welcome to call me about this. 1-877-842-4455. We only service commercial pools. Like you, we sell sodium hypochlorite.