Problem Statement:

Water protects the laser tube from overheating.  We need to test water is flowing ( 2 gps) and it’s temperature is safe (less than 35 °C/95 °F).



  • Water cooler Thermoelectric Cooler here:
    • Temp
    • Fan RPM
  • Water RPM here (or DIY here, you need to add the sensors.)
  • Water Temperature here:
    • Pre Laser tube.
    • Post water cooler.
    • Reserve tank.


Water mixture:

  • 11 liters (3 gallons) distilled water here.
  • 3-4 drops Tetra AlgaeControl Water Treatments here.
  • 3-4 drops Dawn liquid soap here.






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