This gunite pool has two returns (circled in red) and one skimmer on the far side. Pump is a one-speed and return strength is very strong. The eyeball on the back return near the steps is pointed down 45 degrees and straight ahead towards the far wall. The eyeball on the left sidewall return is pointed down 45 degrees and pointed as much as possible towards the skimmer (but really towards the right front corner). But as you can see in the picture, debris accumulates along the left side of the pool, particularly in left back corner. (If I open up main drain, leaves will accumulate there too.) What is the right way to position the returns to ensure best possible circulation and skimmer pickup? Thanks!

