I'm so glad yor pool is clearing up - the best advice I could give you is to invest in a good test kit (the one sold on this site is great) this way you can take care of your pool yourself. You will save a lot of money, and your pool will be easy to maintain. When you have time, you can go on the "Pool Soutions" page and read up on pool tips. You can also find answers to many questions on this forum. here is a link to the kit that is sold here, the one most of us use:

http://www.poolsolutions.com/cart/kits.php