Thanks for the welcome! I believe my pool walls are 48, but I am not completely for sure. Now I am experiencing another problem. Yesterday evening, I decided to get in and vaccum it out hoping that would help get rid of the algae because I am tired of wasting my chemicals. Of course because the water was green, I couldn't see the bottom to assure I was getting everything; however, there were a ton of leaves that had settled in the middle of the pool at the bottom. I tried to get all that I could with what I could see, but now I am having a problem with my pump/filter. I don't know if it is clogged with leaves, but it seems as if my filter isn't working. You can hear the pump running just fine, but nothing is coming out of my returns. When I vaccumed the pool I did it on bypass to waste. I have tried backwashing, rinsing, and putting it on filter, and still nothing. I have done this several times, including cutting the pump on and off. So, I just turned it off and left it off. Any suggestions as to what could be wrong?