First let me say that this site has been invaluable in providing the guidance during our pool planning and build. I just joined as a lifetime supporter and hope someday to be able to contribute some valuable advice to someone who is currently in my situation as a first-time pool owner.
We are in the startup phase of our pool project and are seeing some water testing gaps between what I test and what the startup guy is reporting. After reading some of the recommendations on the site, I purchased the Taylor K2006C test kit (probably an overkill, but it seems that a little OCD in pool water chemistry goes a long way). I've been testing the water every few days to ensure the water is in balance as recommended by Pebble Tec. Since it's cooler weather now and there's not much swimming to have wide swings in pool chemistry, I thought that this would be a good time to learn to maintain water chemistry.
The only reading where there is a gap between my testing and the startup service is ph. When the water gets to 7.6 to 7.8, I'm adding acid to get it down to the recommended levels (7.4 to 7.6). All other tests are well within range. The pool guy asked me not to add any more acid as the ph is getting low. I saw that he was using a fairly simple test kit so I decided to check my Taylor test kit with the one supplied by the pool builder (home depot kit). The pool builder kit matched my Taylor kit so I'm thinking of continuing what I'm doing and probably maintain the pool myself after the startup period.
Should I take some water to a store for further testing?
Thanks to all.