Section R. 325.1653 - Pump construction, installation, design, and maintenanceRule 153.
(1) A pump shall be constructed so that there are no unprotected openings into the interior of the pump or well casing.(2) A power driven pump shall be attached to the casing or approved suction or discharge line by a watertight connection or shall have a base plate that is in compliance with the provisions of R 325.1641.(3) A pump shall be designed, installed, and maintained so that priming is not required for ordinary use.(4) Plastic pump drop pipe shall be in compliance with the material requirements for water service lines pursuant to the provisions of R 325.1655(2). Flexible or coiled plastic pipe, when used as submersible pump drop pipe, shall not have splices. Plastic pump drop pipe shall not be used with a packer-jet assembly.(5) Submersible pump motor lubricants and vertical turbine shaft lubricants shall be USDA- or FDA-approved food contact grade formulations.Mich. Admin. Code R. 325.1653