MixByParts

Bilt-Hamber · Auto-Foam; UK manufacturer page and linked auto-foam technical sheet, explicit typical 4% PIR calibration

Bilt-Hamber Auto-Foam mixing calculator

Calculate a reservoir mix for Auto-Foam’s explicit typical 4% delivered target using measured equipment output.

Collect all output until the plain-water reservoir is empty, at the manufacturer’s specified full detergent feed setting.

This tool supports Auto-Foam’s explicit typical 4% delivered target only. This is a percentage of total output, not of the bottle or water alone.

Calibrate with plain water first

  1. Fill the reservoir with plain water. Use the manufacturer’s full detergent-feed setting.
  2. Collect the complete discharge until that reservoir empties, then measure its total volume.
  3. Keep those equipment settings when using the calculated reservoir mix.

Reservoir concentration and delivered concentration differ. The example below demonstrates the distinction.

Checked application examples

Examples use volume measurements. Water already measured and finished mixture are different starting points.

Calibrated foam — typical 4% PIR

Calibrated delivered concentration. 1 L reservoir producing 10 L measured output needs 400 mL product and 600 mL water for 4% calculated PIR.

For the explicit typical 4% target, multiply all measured collected output by 0.04, then add water to fill the reservoir. Keep the calibrated equipment and feed settings.

Source location: Product page Details, typical PIR; auto-foam technical sheet, How to Use, reservoir calibration paragraph. The manufacturer product page states a typical 4% panel-impact ratio. Its technical sheet makes the basis explicit: collect all output until a plain-water reservoir empties, multiply that total by 0.04 for product, then fill the remaining reservoir space with water.

Exact product and source

Product / version
Auto-Foam; UK manufacturer page and linked auto-foam technical sheet, explicit typical 4% PIR calibration
Market
United Kingdom manufacturer instructions; Auto-Foam prewash concentrate
Measurement basis
Volume. Delivered concentration requires equipment calibration. US gal and US fl oz are US volume units.

Bilt-Hamber Auto-Foam — official product instructions
Reviewed 2026-10-16.

Bilt-Hamber Auto-Foam technical sheet — explicit 4% total-output calibration
Reviewed 2026-10-16.

Bilt-Hamber Auto-Foam FAQ — calculated product exceeds reservoir capacity
Reviewed 2026-10-16.

MixByParts is independent of Bilt-Hamber. Check the exact local label; formulations and instructions can change.

Application limits

Use on cool surfaces and follow current product application, dwell and rinsing instructions.

This tool supports the explicit typical 4% delivered target only. The separately printed 1:100–5:100 range is not converted into percentage endpoints here.

Reservoir concentration differs from panel-impact concentration. Collect all plain-water discharge until the reservoir empties, and keep the same calibrated settings.

Recalibrate after changing equipment, nozzle or orifice, pressure, water supply, detergent-feed setting or reservoir fill. A target requiring more concentrate than reservoir capacity is unsupported at that setting.