Making repeated return trips to clean plugged effluent filters decreases productivity and profitability for septic waste haulers. Geoflow Inc. addresses that problem with BioDisc filters, which use Geoshield anti-microbial material to retard slime growth.The disc filters, which are placed between the effluent pump and the drip dispersal field, are molded from polyethylene resins. That makes them lightweight and durable. With a 120-mesh opening, they trap debris — down to 130 microns in size — that could otherwise plug tubing and drip emitters.The Geoshield treatment makes the filters unique, says Karen Ferguson, company president.“The Geoshield material is molded onto the BioDisc
