My catch basin on my infinity edge pool has no method of filtration so debris builds up there. I am looking for a robotic pool cleaner to deal with the catch basin. The issue I have is that the basin is narrow (about 3 feet wide) and is in a semi circle that is about 50 feet in circumference. The walls on both sides of the catch basin are at 90 degrees to the floor of the catch basin so it is difficult for most robots to climb them and to maneuver in such a narrow channel. Anyone have any experience with one that may work in this type of situation?