TL;DR
A pitless adapter is a two-part brass or stainless fitting that connects the drop pipe inside a well casing to the buried service line below the frost line, eliminating the old hand-dug well pit. The casing-mounted half seals through the casing wall, while the slide-on half attaches to the drop pipe and lifts out with a T-handle tool so the pump can be serviced without excavation.
What it means
A pitless adapter is a two-part brass or stainless fitting that connects the drop pipe inside a well casing to the buried service line below the frost line, eliminating the old hand-dug well pit. The casing-mounted half seals through the casing wall, while the slide-on half attaches to the drop pipe and lifts out with a T-handle tool so the pump can be serviced without excavation. It is standard equipment on drilled wells in freezing climates.
Where it sits in the glossary
Pitless adapter is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
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