I have a AG 21' that has wedding cake steps. (It's buried in the ground three feet) We have the Pentair Kreepy Krauly Lil Shark cleaner that works on the skimmer. It keeps getting stuck between the pool wall and the steps. The steps are to unwieldy to take out every day and we have a lot of trees. Is there a way to remedy this, or should we just return it. What would be a better solution for our pool if the Shark won't work?