Well water filtration in Central Florida is not a one-product problem. Floridan Aquifer water typically arrives at the wellhead with some combination of hardness, iron, hydrogen sulfide, occasional sediment, and (in shallower surficial wells) low pH. A properly designed system stages oxidation, filtration, softening, and reverse osmosis in the right order for your actual water. This guide walks the contaminants, the treatment options, and the sizing logic Quality Filters And Pumps uses on every install.
The Six Contaminants Driving Most Central Florida Well Treatment
- Hardness (calcium and magnesium): visible scale on aerators, faucets, glassware, and inside water heaters.
- Hydrogen sulfide: rotten-egg smell, strongest on the hot side, corrodes copper.
- Iron (dissolved ferrous and oxidized ferric): orange-red stains on fixtures, laundry, and tile.
- Sediment: sand and fine particulate from the well bore or aging casing.
- Low pH (some surficial wells): blue-green staining on copper fixtures, pipe pinhole leaks over time.
- Bacteria (intermittent): coliform and E. coli are testable, and shock-treatable.
Less common but still routine: tannins from organic decay in swampy recharge zones, manganese in some deep zones, and very occasionally elevated nitrates near agricultural land. PFAS testing for private wells in Florida is still emerging; we recommend it for wells near firefighting training areas, airports, or industrial sites.
Test First, Then Size
Every install we do starts with a free on-site test. The minimum panel: iron, hardness, hydrogen sulfide, pH, TDS, and a temperature reading. We send a lab sample for anything specialized: bacteria, arsenic, radium, PFAS. Florida well testing guidance covers what the EPA and state recommend; see our companion Florida well water testing guide for the full picture.
Recommended Method by Water Profile
| Your water profile | Recommended treatment sequence |
|---|---|
| Hard water only, no iron or sulfur | Sediment prefilter, then water softener, optional under-sink RO for drinking |
| Hard water plus mild iron (under 1 ppm) | Sediment prefilter, then softener sized for combined load, optional RO |
| Iron 1-3 ppm with light sulfide | Air-injection oxidation with catalytic media, then softener, then RO |
| Strong rotten-egg smell, iron over 3 ppm | Air-injection oxidation, catalytic carbon, larger softener, RO |
| Low pH (under 7.0) with copper staining | Calcite neutralizer first, then iron/sulfur stage if needed, then softener |
| Bacterial hits after rain or flooding | Shock chlorination, then continuous UV disinfection upstream of softener |
How Each Treatment Stage Works
Air-Injection Iron and Sulfur Removal
Air-injection systems are the workhorse for combined iron and hydrogen sulfide removal on Florida wells. A small air pocket sits at the top of a treatment tank. As water passes up through the pocket, dissolved iron oxidizes to its insoluble ferric form and hydrogen sulfide oxidizes to elemental sulfur. The oxidized particles are trapped in catalytic carbon or birm media below. The system backwashes itself on a timed cycle and refreshes the air pocket from an internal vent. No chemicals, no compressor, no scheduled chemistry to mix.
Why Softener Sizing Matters
A properly sized softener uses just enough salt to fully regenerate the resin bed without over-regenerating. The calculation: hardness in grains per gallon, multiplied by daily gallons used by the household, multiplied by a safety factor, divided by the resin bed's rated capacity. For a four-person household on Central Florida well water testing 20 grains per gallon, the typical sizing lands in the 48,000 to 64,000 grain range. Bigger is not better, an oversized resin bed wastes salt and water.
When Reverse Osmosis Is the Right Call
Point-of-use reverse osmosis is the only consumer technology that consistently removes dissolved solids, lead, arsenic, fluoride, nitrates, and PFAS to bottled-water quality. We install RO at the kitchen sink for any home that wants better drinking water than what comes out of the softener, which is every home we install on a well. For ice makers and refrigerator dispensers, we tee the RO line over to the fridge when the run is short enough to maintain pressure, or add a permeate pump for longer runs.
Maintenance, Documented
Every install we do leaves a written maintenance schedule: when to refill salt, when to replace sediment cartridges, when to swap media, when to test water again. The leading cause of system underperformance is missed maintenance, not bad equipment. We offer maintenance contracts for owners who would rather not track it themselves; see our maintenance plans.
Call a Professional If
- You have not had your well water tested in the last 12 months.
- Water has visibly changed color, taste, or smell.
- Fixtures and laundry are staining despite an existing softener (your iron or sulfur load is exceeding the softener's capacity).
- You have an existing filtration system that is more than 12 years old.
- You are buying a property with a private well of unknown service history.
- Anyone in the household has elevated blood lead, kidney issues, or pregnancy considerations.
Background reading: see iron and sulfur in well water, whole-house well water filtration, Florida well water testing, and well water vs city water. Local filtration service pages: Ocala, Gainesville, Leesburg, Mount Dora, and Eustis. See the full water filtration service page and the filtration repair page.
Frequently Asked Questions
What's the single biggest well water problem in Central Florida?
Will a softener fix iron and sulfur?
Do I need to test my well water before buying equipment?
How often do whole-house filter media need replacing?
Does reverse osmosis remove everything?
Ready to fix the water at your Central Florida home?
Free on-site water test. System sized to your water. Written quote before any work.