WaterVerdicts research

UV Water Treatment Buying & Sizing

Flow-rate, comparison, maintenance and treatment-order guides for whole-house UV water systems.

UV sizing

What Size UV Water System for 2 Bathrooms?

UV water-system sizing for two-bathroom homes by peak GPM, validated UV dose and prefiltration.

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UV sizing

What Size UV Water System for 3 Bathrooms?

UV system sizing for three-bathroom homes using 9 vs 15 GPM classes, peak demand and validated dose.

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UV sizing

What Size UV Water System for 4 Bathrooms?

UV treatment sizing for four-bathroom homes with 15 vs 22 GPM systems and peak-demand calculations.

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Commercial comparison

UV vs Chlorination for Well Water: Which Disinfection Method Is Better?

UV and chlorination compared for private wells by microbes, residual protection, maintenance, chemicals and treatment design.

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Worth-it guide

Is UV Water Treatment Worth It for Well Water?

When whole-house UV is worth buying for private wells and when testing or other treatment should come first.

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Pre-treatment guide

UV Water System Prefilter Requirements: Sediment, Iron and Hardness

What water should be removed before UV treatment and why sediment, turbidity and scale affect performance.

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Ownership cost

UV Water System Maintenance Cost per Year

Annual UV water-treatment cost including lamp unit, electricity, sleeve cleaning and prefilters.

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Maintenance guide

UV Quartz Sleeve Cleaning and Replacement: When Is It Necessary?

How to clean, inspect and replace a UV water-system quartz sleeve and why fouling matters.

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Treatment-order guide

UV Before or After a Water Softener?

Correct placement of UV treatment relative to water softening on private wells.

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Problem-to-product guide

Best UV Water System Size for Bacteria in Well Water

How to choose a whole-house UV system for bacterial contamination using validated dose, flow rate and prefiltration.

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Exact model comparison

VIQUA Arros 9 vs 15 vs 22: Which UV System Size?

VIQUA Arros 9, 15 and 22 compared by validated flow, power consumption, chamber size and household fit.

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