This guide explains how to determine the amount of HydraFiber Ultra in a growing media mix by timing bale movement on the HydraFiber Processing Unit belt and converting that to pounds, cubic feet, and final mix percentage. It outlines the point-to-point timing method, then walks through calculations to find pounds per minute, cubic feet per minute, and HydraFiber Ultra percentage based on line settings and material density. Density values are provided for mixes with peat moss, bark, coir, or heavier components. Users are encouraged to keep mixing equipment calibrated and to work with a HydraFiber Technical Account Manager for support and calculator tools.
Key Points
- Use the point-to-point timing method on the HydraFiber Processing Unit belt to measure seconds per inch of bale travel.
- Convert timing data to pounds per minute using a 60-second multiplier and 1.92 lbs. per inch of compressed HydraFiber Ultra.
- Determine cubic feet per minute and final HydraFiber Ultra percentage by dividing by the appropriate HydraFiber Ultra density and total line setting.
- Density values vary with components: 1.70–1.86 lbs./ft.³ with peat moss and 1.93–2.10 lbs./ft.³ with bark, coir, or heavier components, depending on inclusion rate.
