Greetings, Since purchase of our semi inground pool, we have had issues with our topcaps-part 22513. We constantly have to replace them due to poor construction. It has been a necessary evil of our pool, which we installed in 2008. This year, when we went to order new topcaps, Wilbar informed us they will no longer manufacture the topcaps...essentially, we are out of luck. Help! I need to find a replacement 7" one piece topcap.