The effluent that leaves the septic tank comes from the clear zone to minimize solids loading on the downstream components of the system. The baffle, tee or effluent screen at the outlet is designed to draw from the clear zone, retaining floatable or settleable solids in the tank.The settling process requires time to occur, so the tank must be large enough to retain the wastewater in a turbulence-free environment for two to four days. Excessive flow and turbulence can disrupt the settling process as tank volume, size, shape and inlet baffle configuration are designed to minimize turbulence.Effluent screens are designed
