What Direction Should My Return Jets Face?

Though conventional wisdom usually has people thinking upwards to create ripples, pointing your return jets down and in a unified direction actually is preferred. 

Downward Return Jet Placement (GOOD)

• Less Surface Area, Thus Shorter Skim Time
  Greater Water Turnover
• Less Heat Loss
• Less Evaporation
• Less Chemical Burn Off

Upward Return Jet Placement (BAD)

• More Surface Area, Thus Longer Skim Time
• Less Water Turnover
• More Heat Loss
• More Evaporation
• More Chemical Burn Off