Diffuser construction and mounting arrangement

Aeration apparatus for a wastewater treatment basin containing wastewater, said apparatus comprising:

• an air supply pipe for immersion in the wastewater said air supply pipe presenting an outlet port;
• a pair of saddle sections removably secured on said supply pipe at the location of the outlet port, said saddle sections cooperating to extend around the supply pipe for structural reinforcement thereof at the outlet port location;
• an outlet spout on one of said saddle sections aligned with said outlet port to receive air therefrom, said spout having a generally cylindrical wall and extending substantially vertically;
• a Tee fitting having an inlet section presenting a generally cylindrical wall and a pair of axially aligned outlet sections each having substantially the same configuration and size;
• means for connecting said walls of the spout and inlet section directly together with one of said walls inside of and in contact with the other of said walls in a concentric arrangement providing a double wall construction, said double walled construction extending substantially the entire length of the Tee fitting inlet section and substantially the entire length of the outlet spout, thereby connecting said Tee fitting with said spout such that said outlet sections of the Tee fitting extend substantially horizontally;
• and
• a pair of elongate tubular diffusers connected with the respective outlet sections of said Tee fitting in generally horizontal extension therefrom in opposite directions, each diffuser having means for discharging air bubbles into the wastewater.