What to Compare
Whole house filtration treats all water in the home (showers, laundry, appliances); under-sink treats only drinking/cooking water. For Florida's hard water and chlorine taste, most homeowners benefit from both—a whole-house softener/filter plus a point-of-use RO for drinking.
Head-to-Head Breakdown
Whole House Water Filtration
Features and considerations
- Treats ALL water entering the home—showers, laundry, appliances, and drinking
- Protects appliances (water heater, washing machine) from scale and sediment
- Removes chlorine from shower water (reduces skin and hair dryness)
- Single point of maintenance rather than multiple filters
- Required for full protection against Florida's sulfur and iron issues
Limits and questions
- Requires professional installation in most cases
- Some filtration types (softeners) require ongoing salt/media replacement costs
- Not as effective as RO for removing certain contaminants like nitrates and PFAS from drinking water
Under-Sink (Point-of-Use) Filtration
Features and considerations
- DIY installation possible for many under-sink systems
- Addresses taste, odor, and health concerns for drinking/cooking water
- No whole-home impact to water chemistry or flow
Limits and questions
- Only treats water at one tap—showers, laundry, and appliances receive untreated water
- Doesn't address scale buildup in water heater or other appliances
- Small tank capacity—some RO systems produce water slowly
Side-by-Side Comparison
| Whole House Water Filtration | Under-Sink (Point-of-Use) Filtration | |
|---|---|---|
| Coverage | Confirm current Whole House Water Filtration availability for your address. | Confirm current Under-Sink (Point-of-Use) Filtration availability for your address. |
| Upfront Cost | Request an itemized quote for Whole House Water Filtration; compare the same scope and payment period. | Request an itemized quote for Under-Sink (Point-of-Use) Filtration; compare the same scope and payment period. |
| Operating Cost | Request an itemized quote for Whole House Water Filtration; compare the same scope and payment period. | Request an itemized quote for Under-Sink (Point-of-Use) Filtration; compare the same scope and payment period. |
| Installation | Professional recommended | DIY possible for most under-sink systems |
| Contaminant Removal | Sediment, chlorine, hardness, iron, sulfur (system-dependent) | Ask the Under-Sink (Point-of-Use) Filtration provider to document contaminant removal for the exact offer. |
| Appliance Protection | Yes—prevents scale in water heater, dishwasher, etc. | No |
| Florida Best Use | Ask the Whole House Water Filtration provider to document current quote and terms for the exact offer. | Ask the Under-Sink (Point-of-Use) Filtration provider to document current quote and terms for the exact offer. |
Frequently Asked Questions
Do I need a water filter in Florida if I'm on city water?
Florida municipal water meets EPA standards, so it's safe to drink.
What water filter do I need for a Florida well?
The right system depends on what's in your water—test first. Most Florida well water with hardness and hydrogen sulfide (rotten egg smell) benefits from a whole-house softener and aeration or oxidation system. Add an under-sink RO for drinking water.
Are Berkey water filters worth it in Florida?
Berkey gravity-fed countertop filters are popular and effective at removing many contaminants through carbon and ceramic filtration. They're a good solution for drinking water without plumbing installation.
Consumer resources
Use these official resources when evaluating an offer. They provide general guidance and do not establish a winner between these options.
- FTC: checking home-repair offers and written agreements — General consumer guidance; not evidence of either brand's price or performance.
- EPA: selecting water-treatment systems — Treatment-selection guidance; not current prices, warranties or brand test results.