SECTION 252:656-19-4. Sludge pumps and piping

Latest version.

(a)   Sludge pumps.
(1)   Duplicate units. Provide duplicate units.
(2)   Minimum head. Pumps must provide at least 24 inches of positive head.
(3)   Sampling facilities. Provide a means to sample sludge. All sampling pipes and valves must be at least 1.5 inches.
(b)   Sludge piping. Sludge withdrawal piping must be at least 8 inches in diameter for gravity systems and 6 inches for pump suction and discharge lines. A minimum velocity of 3.0 fps for gravity lines is required.

[Source: Added at 17 Ok Reg 1140, eff 6-1-00; Amended at 23 Ok Reg 937, eff 6-15-06]

                    
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