I don't know why I keep taking my water to the pool store, but we had to go to town and it was on the way so I took it.
Their numbers are:
pH 7.7 CYA 68
I came home and used my TF test it and got different numbers. I am more trusting of my kit...is that right...
CYA ~57 (closer to 55 than 60)
I wondered why they came out so low on FC and showed CC. That bothered me so I tested it and my gut was right..it was higher than their reading and no CC. I just turned my SWCG down from 35% that had me at FC of 7 to 30% to get a tad closer to 6. But if I can't get it right is it better to be on the high end of the ideal in the CYA/FC chart or the lower end? Would FC of 7 be alright? Should I just not mess with it?
What would cause the big discrepency in the CH and the FC? Are their tests just that inaccurate? I did the tests exactly, took my time, did it drop for drop so I now I did the tests accuratley.
Also, I am trying to get my CYA up. I added 4 pounds of it on Monday and according to the pool store went from 45 Monday to 68 today but my test came in between 55 and 60. Should I wait a few more days and test again and add some more stabilizer?