Section 144-232-8-803.0 - PIPING MATERIALS803.1Piping materials: Acceptable materials for pipe and fittings used in well or trench are: 803.1.1Copper: Minimum type "K" copper.803.1.2Steel: Minimum Sch. 40 Galvanized steel.803.1.3Polyethylene: Minimum 160 psi polyethylene coil plastic.803.1.4Polyvinylchloride: Minimum Schedule 40 PVC plastic.803.1.5Other: Any material approved by the Commission.803.2Pipe rating: No installation of materials shall exceed the manufacturer's rating and specifications.803.3Cemented fittings: No plastic or nylon fittings shall be used in the well or in the trench in submersible pump installations unless they are cement type fittings for use with rigid or semirigid pipe.803.4Stainless steel clamps: All connections to flexible plastic pipe in the well or under ground outside the building foundation shall be double clamped with all stainless steel clamps.803.5Torque arrestors: On all wells cased 5 inches or larger for submersible pump installations, one (1) torque arrestor shall be installed within 5 feet of the discharge of the pump for all materials used. One (1) torque arrestor, cable guide, or acceptable centralizer shall be used at a minimum of 50-foot intervals for the first 200 feet above the discharge of the pump for all nonmetallic piping materials.803.6Pump safety lines: If safety lines are used for submersible pump installation, they should be installed to at least the manufacturer's minimum strength recommendations. The safety line shall be secured to the drop pipe at a minimum of 10 foot intervals and should be secured inside the casing when pitless adapters are used. Materials used for safety lines and secureness shall not contain materials hazardous to the water quality.803.7Pitless adapters: All pumps installed for drilled wells shall be installed with a pitless adapter or a sanitary seal. Pitless adapters shall be installed in a manner to exclude the entrance of water or other material into the well. All pitless adapters shall be installed not to exceed the weight recommendation of the manufacturer. Any above ground installation shall use a sanitary well seal.803.8Casing cover: Drilled well casing shall have a manufactured cover to prevent the entrance of foreign matter into the well.803.9Underground shutoff values: Installation of underground shutoff valves shall conform to the current State of Maine Internal Plumbing Rules Chapter 238.10-144 C.M.R. ch. 232, § 8-803.0