Thanks for the reply. I do add muriatic acid every year to keep the ph down, so that could be a factor. I don't have readings prior to opening, but 2 weeks after chemicals were added at opening, here is what I got from the Sweetwater pool store:
Total alkilinity - 133
Adj. Total alkilinity - 103
Total Hardness - 168
Ph 7.7
Here are my readings 3 months later:
Total alkilinity - 107
Adj. Total alkilinity - 83
Total Hardness - 134
Ph 7.8
Here is what the pool company is billing for(all during pool opening):
2007 - Alk increaser 15 lbs Calc hardness increaser 15 lbs.
2006 - Alk increaser None Calc hardness increaser 30 lbs.
2005 - Alk increaser 9 lbs Calc hardness increaser 25 lbs
2004 - Alk increaser 18 lbs Calc hardness increaser 30 lbs
Does this look reasonable?