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Equipment in Mud Circulating Systems 13
point is lower than 10 lb/100 sq ft. A degasser is usually not necessary if
the yield point of the mud is less than 6 lb/100 sq ft. If the degasser is a
vacuum type (Figure 1.14) that requires power mud to operate the mud
educator, the power mud should be taken from the degasser discharge
compartment only. Violation of this rule will cause bypassing of the
Figure 1.14 A vacuum degasser. (Courtesy of TSC.)
