I have a pool that fits the drawing below (16x32' Vinyl in-ground, not to scale). 2 returns on the stairs, and 1 in the pool. Where should I point the returns? right now the big jet is pointed toward the shallow end and rippling the surface and everything to the left of it stays stagnant. Should I aim it down and left or up and left or keep it how it is? Pool has no drain, just the 3 return jets and the skimmer.