POE Water Treatment — Sizing & Train Designer

Influent Profile

ZIP Code Lookup

Enter a 5-digit ZIP to pull EPA-reported values.

Or — City Preset (demo)

Flow Design (auto-calculated)

Main Pipe

Bathrooms

Kitchens

Service Flow

—

typical sustained

Peak Flow

—

brief instantaneous

Water Chemistry & Bed Age (performance modifiers)

Source pH

Months in Service

pH derates arsenic / fluoride adsorbents (GFO, alumina, bone char) — these run best below ~pH 7. Months in service applies a breakthrough / bed-exhaustion derate (single-use media) or a milder aging taper (regenerable resins). High influent iron also fouls softening resin.

Contaminants — EPA vs Your Value

Contaminant EPA YOU EWG*

EPA = latest reported value from SDWA LCR / UCMR3-5 for the system(s) serving this ZIP. YOU = editable value used in calculations. EWG* = reserved for EWG health-based benchmark (future update — see footer roadmap).

Treatment Train

Each bank = a tank size + one or more tanks in parallel. Banks run in series (bank 1 sees raw influent). Inside each tank, media stack TOP→BOTTOM in service-flow order — list lightest media first (water hits it first), densest last (settles at bottom after backwash). Up to 4 banks.

Effluent — Final Removal

Combined removal across the full train, derated for EBCT, hydraulic loading, bed age / breakthrough, and source-water pH & competing ions. Status dot is colored against the relevant EPA / secondary limit.

Contaminant	Influent	Unit	Svc Effluent	Svc %	Peak Effluent	Peak %	Status

Reference Limits