By Ryan Harrison
Photo by harmonicagoldfish via Flickr
March 22, 2014 (San Diego's East County) - Preparing your swimming pool for the upcoming summer season means more just than taking off the cover and refilling it. After a long winter, your pool may be green and full of gunk and debris. More than 53,000 in-ground pools and 171,000 above-ground pools were sold in 2012, according to The Association of Pool and Spa Professionals. Before opening your backyard for swimming, take the time to thoroughly clean and make upgrades to your existing pool for both the health of the swimmers and the pool.