🏖️ High-Rate Sand (15 GPM/SqFt) vs Regenerative D.E. (1.5 GPM/SqFt), Backwash GPM

Commercial Pool Sand & D.E. Filter Sizing Calculator

Size commercial aquatic center filtration banks: calculate filter surface area (Sq Ft based on NSF 50 loading rates: 12-15 GPM/sqft for high-rate sand vs 1.5-2.0 GPM/sqft for regenerative Diatomaceous Earth), backwash water discharge gallons, media replacement cycles, and equipment contractor profits.

1. Project & Operating Inputs

Recirculation System Flow (Gallons / Minute - GPM e.g. 450 GPM)

Filter Media Type (15 for High-Rate Sand or 2 for Regenerative D.E.)

Customer Bid Price for Complete Commercial Filter Grid ($)

Fiberglass Filter Tanks, Multiport Valves, Media & Install ($)

2. Financial Breakdown & Yield

NSF 50 COMMERCIAL POOL FILTER

Turnkey Filter System Profit

Commercial Pool Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost