Sediment
Gritty water or particles in the bottom of a glass usually point to one of a few common causes.
Short answer: On public water, sediment often follows nearby main work or hydrant flushing. On a private well, sediment can indicate a well or pump issue, aging plumbing, or naturally occurring fine particles. A whole-house sediment filter addresses most cases once the source is identified.
Common causes
- Public water: recent main break, repair, or hydrant flushing nearby that stirs up sediment in the distribution system.
- Private well: sand or fine particles from the aquifer, a well screen or casing issue, or a failing pump.
- Aging plumbing: corrosion or mineral buildup breaking loose inside pipes.
Step-by-step
- Check whether the sediment appeared suddenly or has been a long-term issue.
- On public water, check your utility's notices for recent main work in your area.
- On a private well, consider having a well professional inspect the well and pump if sediment is new or worsening.
- Consider a whole-house sediment filter as a practical fix once you understand the likely source (see Whole-House Filtration).
Common mistakes
- Assuming all sediment is a safety issue rather than checking for an explainable cause first
- Installing a filter without addressing a failing well or pump that's introducing the sediment
Official sources
- Your utility's public notices
- DNREC Well Permits (for well-related sediment concerns)
Related
Does sediment mean my water is unsafe?
Not necessarily. Sediment is often a nuisance issue related to distribution-system work or well/plumbing conditions, but persistent or worsening sediment on a private well is worth having a professional investigate.
Does not endorse a specific manufacturer or product claim.
Last reviewed: 2026-07-11. Report a correction.