Mich. Admin. Code R. 325.10820 - Water suction lines
Rule 820.
(1) A casing shall not be used as a suction line unless protected by a permanent outer casing.
(2) For type I and type IIa public water supplies, a buried water suction line extending outside the well casing is prohibited.
(3) For type IIb and type III public water supplies, a buried water suction line extending outside the well may be used if protected in a manner approved by the department.
(4) Any buried pump discharge line shall be under positive pressure at all times.
Notes
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