What is “INRB”?
INRB stands for In-Ground Nitrogen-Reducing Biofilter, that includes a nitrate-reducing filter layer below the drain field with material that reacts with nitrate.
What is a NSF-245 certified Aerobic Treatment Unit?
An Aerobic treatment unit is a system that includes recirculation or some other method of reducing nitrate and are capable of providing at least 50% nitrogen reduction under test center conditions before treated wastewater is discharged to the drain field.
Having septic systems that Reduce nitrogen in sewage by around 65% helps preserve our springs, and our Earth.