I have had my pool for fours years now. I installed the solar myself. I have learned a lot about pool maintenance thru forums and questions asked at pool supply places. I do not know how old the pool is but am getting it replastered. I chose to go with the premium DuPont Quartz plaster instead of Pebbletek primarily because my cool deck in starting to deteriate and for the same cost I am having my decking redone. With the solar our pool season runs from April 1st the the end of September. I bought a solar cover when we first moved in because installing the solar was taking longer than I had originally anticipated. Although it does help in getting the pool temp up faster I do not use it anymore because after I get it removed and clean up the leaves and debris that it traps my girls, ages 6 & 8, are done and it is time to put the cover back on.