Section 604.410  Spray Aeration

Spray aeration design must provide:

a)         a hydraulic head of between 5 and 25 feet;

b)         nozzles, with the size, number, and spacing of the nozzles being dependent on the flow rate, the space, and amount of head available;

c)         nozzle diameters in the range of 1 to 1.5 inches to minimize clogging; and

d)         an enclosed basin to contain the spray, with any openings protected by a 24-mesh screen.