Water Supply Systems · Well Systems
Well Cap
A protective cover installed on top of the well casing to prevent contamination, debris, and small animals from entering the well. Seals the well opening while allowing access for pump service. Includes venting to prevent pressure buildup. Must be properly sealed and secured. Sanitary well caps include a screened vent to allow air exchange while preventing contamination.
Common symptoms
- Contamination
- Debris in well
- Unpleasant odors
- Visible damage
Common repairs
- Cap replacement
- Seal replacement
- Vent screen cleaning
Related terms
Pro launch updates
Get notified when Pro launches, plus a monthly code-change digest. Email only — no account required.