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Lesson 6

Three Bottom Sections: Loading

Some wheels have three bottom sections, including the 8.34 factor. To find the top, multiply all three.
Loading / PoundsTap a section to cover the quantity you want to find.

What remainsLoading = Flow × Conc. × Factor

  1. 1
    Identify unknown

    Loading

  2. 2
    Choose wheel

    Loading / Pounds

  3. 3
    Place values

    Flow: 2.0 MGD · Concentration: 150 mg/L · Factor: 8.34

  4. 4
    Cover unknown

    Loading is on top, so multiply all three bottom sections.

  5. 5
    Solve

    2.0 MGD × 150 mg/L × 8.34 = 2,502 lb/day

  6. 6
    Check units

    The answer is in lb/day, the units of the top section.