Hi there. I purchased my home back in May 2012 which included a pool. I believe the pool was installed in 2008. It is a 12000 gal pool and I realized early on that it was a must to understand pool maintenance. As a matter of convenience, I have relied heavily on the local pool store (less than a mile away) for water testing and recommendation. However, as of late, I have been conducting my own water testing with a Taylor kit. My pool has started showing its age, e.g., pitting, plaster is thinning in some areas, but the water is sparkling. My hope is that by joining this forum I will gain additional insights and possibly save some money using alternative chemicals, e.g., using bleach instead of pucks. Thanks.