Auto-backwashing Birm Systems work great in well water polluted with Iron and Hydrogen Sulfide. These work less well on Manganese, and cannot be used where the water contains low pH. In water with a low pH value, pretreatment with Calcite is considered a good option. Auto-backwashing Birm Systems have the advantage of backwashing to refresh media by using Timer Control Valves Installed in them.
Composite Fiberglass construction. Sizes available up to 63 inches in diameter.
Bypass Valve & Internal Distribution Fittings
PVC, CPVC, polypropylene, or S.S internal collectors and distribution fittings and By-Pass Valves and Fittings can be supplied for all applications.
Birm Filter Media
Available in 44 lbs (1 Cubic Ft) size bags.