16" x 65" Aeration System (Air Contact Assemblies)Air contact systems (aeration systems) are primarily used for mixing air with the water, this aids the oxidisation of certain components in the water. One of the most common uses is to oxidise soluble Iron and Manganese into insoluble hydroxides. The Mazzei injector draws in air, allowing the venturi effect to pull it into the inlet pipe to the contact vessel. The spring loaded bypass, as well, is designed to open automatically for when a large volume