I came across a septic sytem, Hoot Aerobic Treatment Unit. The ad says that the product eliminates the mound and increases lot density. You get: low maintenance, mound reduction, sub-surface drip, water recycle, requires less space, easy installation, environmentally friendly, lowers floor height, reduces set-back, larger homes on smaller lots.
Anyone know anything about this system? I wonder if it requires more frequent pumping out.