The Super Air is a pond aerator that requires less pump pressure than the regular Venturis. With a Venturi, as much as 50% of water flow may be lost, whereas with a Super Air the loss will only be 10 to 20%. The secret lies in the special Stainless Steel grid onto which the water flow passes at increased velocity. The form of the grid causes optimal turbulence and mixing of water and air, providing efficient oxygen exchange. Tests have shown that the yield (= oxygen uptake in water) in a Super Air is noticeably higher than in a normal Venturis with a reduced loss of water flow. APPLICATION: The Super Air must be placed at an angle of ± 45°, with the grid fully submerged. Make sure that the air intake is completely above water. It is also possible to instal the unit with the output above the water surface. Sometimes this is recommended when starting a new pond or filter, in quarantine and hospital tanks and in tanks with very heavy fish loads where ammonia and nitrite may occur due to insufficient biomass in the filters. The Super Air can separate part of those gasses. Placing the output above water level causes the gasses to be blown off into the air. ATTENTION: The Super Air is very sensitive for clogging of the grid by string algae (blanket weed). Some form of pre-filtration is therefore recommended to ensure dontinuous operation. The grid needs to be cleaned regularly with a (tooth)brush.