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Hydro Systems 117947CW HydroMinder WDP Water-Driven Pump, Adjustable 2 Percent, NPT

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4.60 lbs
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Water-driven dosing pump developed specifically for use in car washes and vehicle washing. Extreme chemical resistance across low, neutral, and high pH chemistries for use across a variety of applications. Rigorously tested construction expected to last over 62 million cycles! For dilutions rates up to 2%.

Technical Specifications

Min GPM: 0.02
Max GPM: 11
Max PSI: 90
Min PSI: 5
Min Temperature: 34 degrees F
Max Temperature: 100 degrees F

Product Description

Water-Driven Pump Up To 2% Dilution

The HydroMinder WDP (Water Drive Pump) is an advanced chemical dosing pump, with adjustable dilution rate up to 2%. High dosing accuracy and repeatability for constant, precise chemical delivery. Highly engineered wet parts are constructed of materials with extremely high chemical resistance to alkaline chemicals including (but not limited to) hydroxides and phosphates as well as acids including (but not limited to) sulfuric, phosphoric, citric and hydrochloric acids. Consult Hydro Systems for any additional information on chemical compatibility as required.


  • Mounting versatility allows for water flow in both directions providing better installation versatility
  • Lasts up to 62 million cycles
  • Improved dilution accuracy across all flow rates reduces the risk of improper chemical dispensing that could result in vehicles needing rewash
  • Features fewer parts and tool-free maintenance resulting in up to 50% reduction in maintenance time compared to other technologies


  • Pre-Soak
  • Detergent
  • Special Chemical Applications
  • Wax/Protectants/Rinse Aids
  • Tire Care


  • Injection Rate: 1:500 (0.2%) - 1:50 (2%)
  • Average dosing accuracy: +/- 5% of selected ratio
  • Flow Rate: 0.02 GPM to 11 GPM
  • Operating Pressure: 5 PSI to 90 PSI
  • Fluid Temperature Range: 34°F to 100°F
  • Dimensions: 15"H x 6.5"W x 5.25"D
  • Weight: 2.62 lbs.

Product Reviews

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Nice product
Reviewed by charles  w
2/12/2022 6:30:26 AM
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