Reverse Osmosis
Under-sink and higher-capacity reverse osmosis systems selected around feed-water quality, demand and the desired finished-water quality.
Explore Reverse Osmosis→Puget Sound water treatment
Water Treatment Designed Around Your Water
Residential, well-water and commercial treatment systems across Puget Sound — from under-sink reverse osmosis to custom pretreatment and commercial RO systems.
ResidentialDrinking and whole-home water
Well WaterTreatment based on chemistry
CommercialPretreatment through delivery
Why PureSpan
We test first. Then we design the treatment.
A treatment system should reflect the source water, chemistry, flow, daily demand and required finished-water quality—not a one-size-fits-all equipment package.
- Treatment based on actual water conditions
- Proper pretreatment before reverse osmosis
- Equipment selected around chemistry, flow and demand
- Residential through commercial system design
Treatment capabilities
From drinking water to complete treatment trains
Each service starts with the conditions the system needs to solve.
Whole-House Water Filtration
Custom sediment, carbon and specialty filtration solutions for water entering the entire home.
Explore Whole-House Water Filtration→Well Water Treatment
Treatment trains designed around real well-water chemistry, flow, pressure and household demand.
Explore Well Water Treatment→Iron & Manganese Removal
Targeted treatment for staining, metallic taste and elevated iron or manganese based on water chemistry and operating conditions.
Explore Iron & Manganese Removal→Water Softeners
Hardness and scale-control systems sized for the water supply, peak flow and actual household or commercial demand.
Explore Water Softeners→Commercial Water Treatment
Engineered pretreatment, reverse osmosis, storage and service solutions based on feed-water analysis and process requirements.
Explore Commercial Water Treatment→Service & Maintenance
Filter and membrane service, sanitizing, diagnostics and scheduled maintenance for residential and commercial treatment systems.
Explore Service & Maintenance→Water Testing & Treatment Assessment
Field assessment, water sampling and treatment recommendations before equipment selection.
Explore water testing →What’s wrong with your water?
Start with the symptom. Confirm the cause.
How it works
A disciplined path from source water to verified treatment
- 01
Water Assessment
Inspect source, plumbing, flow, pressure and customer concerns.
- 02
Water Testing
Field measurements and laboratory analysis when needed.
- 03
Treatment Design
Select pretreatment, filtration, RO, storage and polishing as required.
- 04
Installation & Verification
Install, commission and verify system performance.
Start with the water
Ready to understand your water?
Tell us about the source, symptoms and goals. We’ll use that information to plan the right assessment.