I live in Arizona and we have a 13,000 gal. pool that has been renovated in the past 6 mos. I had no experience in pool care, we had a pool service but was not satisfied with the service. I relied on the basic test strip and Leslie's pool's test and advice and between the two methods I found the test results were not accurate. Recently I purchased the Taylor K-2005 kit, but I from what I'm reading I should have purchased an upgraded kit.