Pro-Grid™ Vertical Grid Diatomaceous earth is a porous powder with microscopic openings that when magnified look like tiny sponges. Clear water can pass through these openings, but particles, as small as two to five microns, are trapped during the first pass through the media. D.E. filters have internal elements that become coated with D.E. It is this ‘filter cake’ that strains dirt, dust and algae from the water. Similar to sand filters, when D.E. filters become dirty, they are cleaned either by backwashing, or regenerating and draining the clogged D.E. to the ‘waste’ line. To restore filtration, a fresh ‘charge’ of D.E. is added to the filter. For sparkling, clean pools; step up to Hayward D.E. filters.
Filter tanks are made from the most durable materials to meet the demands of the toughest applications and environmental conditions
High capacity, rapid release manual air relief valve bleeds air with a quick quarter turn of the lever
Heavy-duty, tamper-proof, one piece flange clamp securely fastens tank top and bottom and allows quick access to all internal components
Full-size 1.5″ integral drain provides fast and complete flushing
Manual air relief purges air from filter
Bulkhead fittings and union locknuts offer simple, durable installation
Inlet diffuser elbow distributes incoming water evenly over all filter elements