I have a Summer Waves 20' x 4' round pool. Last season I threw away the junk pump/filter and upgraded to a 3/4hp Hayward pump with 21" sand filter. I also added a Hayward skimmer and Intex SWG. All worked reasonably well last year, but I still had a lot of dead spots that debris collected on the floor. This spring as when I startup I am planning to hard pipe everything in PVC, so while I was doing that was wondering if adding a second return eye would be a worthwhile upgrade. My current eye is near the surface, if I added a second would it pay to put it lower and point it at the floor?