📐 Dual-Media (1.55 SG Anthracite + 2.65 SG Sand, Intermix Zone <2.0 Inches, Stratification)

Dual-Media Anthracite & Silica Sand Calculator

Size dual-media rapid gravity potable water filter beds: optimize effective grain size ($d_{10}$) and uniformity coefficient ($UC$) between low-density Anthracite ($SG = 1.55$, 18"-24" top layer) and high-density Silica Sand ($SG = 2.65$, 10"-12" bottom layer), limit interface intermixing zone to $<2.0 ext{ inches}$, and filter media contracting profits.

1. Project & Operating Inputs

Total Filter Bed Volume (Cu Yards e.g. 180 Cu Yards Filter Media)

Anthracite Effective Size (mm e.g. 0.95 mm Uniform Anthracite)

Customer Bid Price for Supplied & Loaded Dual-Media ($)

AWWA B100 Certified Anthracite, Silica Sand, Eductor Loading Labor ($)

2. Financial Breakdown & Yield

DUAL-MEDIA STRATIFICATION

Turnkey Dual-Media Replacement Package Profit

Municipal Filter Media Services Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost