OK, so I bought the Lamotte #2086 Color Q Pro about a year ago but my pool wasn't finished until mi-June, 2020. At that time I bought all new chemicals for it. The color Q gave me very inaccurate readings for CH and I ended up putting in way too much Calcium chloride. So I bought a Taylor K-2005 about a month ago. The Taylor kit is very good for CH and TA due to the rather abrupt color change drop by drop. I have been draining off water and replacing it with fresh to lower CH. This morning I measured the TA on both setups. Taylor gives 60 and Color Q gives 48 (what's up with that?). On CH, Taylor gives 230 while Color Q gives 138 (hello?) I am quite sure that Taylor is correct on both of these. However, I find that trying to match up the pink colors for free chlorine on the Taylor setup is hopeless, at least for me. Actually, they all look the same to me (pink!). The same goes for the PH. I replaced about 1,000 gallons of water yesterday and refilled it to full with the hose, I got a PH of 8.2 on the Lamotte and 7.8 on a Safe Dip unit a friend loaned to me. This is a pool of 10,300 gallons. So I added about 10 ounces of muriatic acid, diluted in a 5-gallon bucket, and let it run for 12 hours. Now the Lamotte shows a Ph of 7.5 and the Safe dip shows 7.7. I realize that this is really no big difference, but it does have a great effect on how effective the free chlorine is in the pool, and I want to know the real deal (is that so wrong?). I add chlorine every day using a Stenner pump so I really don't have to worry about getting the right FC level because I know how much chlorine the pool uses every day and I just add that every day with the Stenner. The PH is a whole nutha thing, however. I want to keep it at 7.6, period. OK, enough said, so here's my question: Does anybody know of a simple, accurate device that I can use to get the true PH? The readings I'm getting are all over the barn!