Prohibition on use of certain devices in wells

Wis. Stat. § 280.16
in effect
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(1) In this section, “pitless adapter” means a device that attaches a well casing pipe to an underground pipe that conveys water from the well. (2) No person may install a pitless adapter that extends into the inside of a well casing pipe except if the sand screen is permanently attached to the bottom of a well casing pipe that is constructed of polyvinyl chloride. Only the following may install pitless adapters: (a) A licensed pump installer. (b) An employee of a licensed pump installer or a registered pump installing business. (c) A welder under contract with a licensed pump installer or registered pump installing business.
Source: WI Statutes (Official Site)URL: https://docs.legis.wisconsin.gov/document/statutes/280.16Fetched: 10/7/2026