Simple liquid level maintenance

HydroMinder has become the industry standard for liquid level maintenance for over 20 years and proven successful for many applications.

Now introducing additional models for car wash applications, which provide dilution capabilities down to 2500:1

This product is currently out of stock and unavailable.


Keep any reservoir filled with consistently mixed solution without pouring, stirring, waiting or downtime

When the solution level in a reservoir drops, HydroMinder’s float opens a non-electric, magnetic valve. The flow of water siphons liquid concentrate into the water stream, automatically maintaining the level of ready-to-use solution. (Models are available for maintaining a tank of plain water, too.) When the tank reaches the preset fill level, the HydroMinder shuts off.

This mechanism has been working in the field for over 20 years. That’s why HydroMinder has become the industry standard for liquid level maintenance.

Features & Benefits:

  • Automatic mixing
  • Environmentally friendly – using concentrates reduces solid waste
  • Useful in a variety of applications
  • HydroMinder units use water power, no electricity required
  • Built with high quality, chemically resistant materials
  • Economical, easy to operate and maintain
  • Improved employee safety – eliminates exposure to concentrated product
  • New models for car wash applications
    • Dilution capabilities down to 2500:1, which allows for use with ultra concentrates
    • Feature AccuPro Technology for consistent dilution performance when water fluctuation occurs
    • Dispensers can be used with car wash chemicals ranging from low to high pH

Additional information

Part Numbers

Please refer to the datasheets on the Documentation tab for a complete table of product numbers and specifications.


HydroMinder Datasheet

HydroMinder Models 502 & 503 Instruction Sheet

HydroMinder Models 506 & 507 Instruction Sheet

HydroMinder Model 511 Instruction Sheet

HydroMinder Model 515 Instruction Sheet

HydroMinder Model 525 Instruction Sheet

HydroMinder Model 530 Instruction Sheet

HydroMinder Models 561 & 562 Instruction Sheet

HydroMinder Models 563 & 564 Instruction Sheet

HydroMinder Models 572 & 573 Instruction Sheet

HydroMinder Model 5111 Instruction Sheet