TL;DR
A sump basin is the buried pit liner, a perforated or solid polyethylene tub typically 18 to 24 inches in diameter and 22 to 30 inches deep, set into the basement or crawlspace floor to collect groundwater from the perimeter drain tile. Perforations let water enter from the surrounding gravel as well as the drain pipes, while a sealed lid is required where radon is a concern or a radon system ties in.
What it means
A sump basin is the buried pit liner, a perforated or solid polyethylene tub typically 18 to 24 inches in diameter and 22 to 30 inches deep, set into the basement or crawlspace floor to collect groundwater from the perimeter drain tile. Perforations let water enter from the surrounding gravel as well as the drain pipes, while a sealed lid is required where radon is a concern or a radon system ties in. Its volume buffers inflow so the pump cycles in bursts instead of rapid-fire short cycling that burns motors out.
Where it sits in the glossary
Sump basin 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.
ProFix tools that touch this term
See also
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