First, figure out what the sediment is
- Gritty sand that sinks fast: coarse particles from the formation or a well screen issue.
- Fine silt that clouds the water: smaller particles that need finer filtration.
- Orange, brown or black flakes: likely oxidized iron or manganese. That is a chemistry problem; see orange stains and black stains.
- White grains or flakes: may be scale from the water heater or a broken dip tube.
Collect a jar from an outside spigot before any treatment and let it settle overnight. It is a simple, useful record.
When sediment means a well problem
A well that suddenly produces more sand may have a damaged screen, a pump set too low, or a pump cycling too hard. Filtering it treats the symptom while the pump wears. The Florida Department of Health points well owners to licensed well contractors for well construction and repair issues. Get the well checked if the change is sudden.
Filtration options
| Option | Good for | Ownership notes |
|---|---|---|
| Spin-down screen | Coarse sand ahead of other equipment | Flush the bowl regularly; screen can be cleaned |
| Cartridge filter | Moderate sediment, finer particles | Cartridges are replaced; pressure drop tells you when |
| Backwashing media filter | Heavy or steady sediment | Uses water to clean itself; needs a drain and enough well flow |
| Staged combination | Mixed particle sizes | Coarse first, fine after, so fine stages last longer |
The micron rating matters. Going too fine on the first stage clogs quickly and drops pressure. Most designs step down from coarse to fine.
Protecting the rest of your system
Sediment filtration usually sits first in a well system because sand and silt can damage softener valves, foul filter media, shade UV lamps and clog RO pre-filters. If you are adding other treatment, ask how sediment control fits ahead of it. Living Water configures well water treatment from the well's test, and the order of stages is part of that design. See also UV vs reverse osmosis for well water.
Questions to ask on a quote
- What micron rating is each stage and why?
- Is there a pressure gauge before and after the filter?
- How often will cartridges or screens need attention at my sediment level?
- Does a backwashing filter need a drain, and does my well produce enough flow to backwash?
- Is there a bypass valve for service?
For more on comparing proposals, see how to compare water treatment quotes.
https://www.floridahealth.gov/community-environmental-public-health/environmental-public-health/water-quality/drinking-water/private-wells/
https://www.epa.gov/privatewells
https://extension.psu.edu/iron-and-manganese-in-private-water-systems
https://www.epa.gov/system/files/documents/2025-01/ws-products-home-water-treatment-guide_v2_508.pdf
Updated 2026-10-17 · Living Waters · Jorge Canela, Water Quality Specialist