(18) Invent Hyperclassic EVO 6 mixers, EDI permacap diffusers.
Hazen and Sawyer and Delaware county evaluated mixer technologies to replace aging swing zone mixers that were difficult to maintain and source parts. Based upon their evaluation of floating, submersible, and vertical shaft mixers, Invent hyperclassic mixers utilizing hyperboloid mixer body technology were selected. Additionally, the aerobic digester diffusers were updated from single drop diffusers to a fixed header lateral system including EDI permacap diffusers.