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Rain Bird® Algae Control System™ (ACS)

Clean your water without chemicals

Before and after results using the Rain Bird Algae Control System (ACS)

Rain Bird Algae Control System TransducerThe Rain Bird ACS is a non-toxic, chemical free control system that uses state-of-the-art ultrasonic technology to eliminate and control algae growth.  The ACS transducer, submerged just beneath the surface, is programmed to generate ultrasonic waves that inhibit the growth and spread of algae. You will begin to see results from within a few days to a few weeks depending on the type of algae and how much algae was established in your water site.


  • Average return on investment (ROI) is 2 years
  • Eliminate costly chemical applications
  • Reduce labor costs
  • Easy to use and maintain


  • ACS installs just beneath the water surface
  • Ultrasonic waves fan out to inhibit the growth and spread of algae
  • Users can expect results in as few as 3-4 weeks

ACS effect on algae - click to enlarge


  • No EPA Certifications required
  • Non-toxic and chemical free



It is important to keep the transducer head clean and free of algae or other scum buildup. We recommend that at least every 30 days you unplug your ACS device from the power source, take it out of the water, wipe the face of the transducer off, put it back into the water and plug it back in. In most applications, once a month cleanings are sufficient, however, in a new installation you should check your unit(s) after initial two weeks to see if more frequent cleanings are necessary. Failure to keep the face clean will interfere with the ultrasonic waves and result in reduced effectiveness of the device.

For detailed installation and maintenance instructions, please view the documents below:

 Rain Bird ACS Instruction Manual

 Rain Bird ACS Quick Reference Guide

 Rain Bird ACS Maintenance Guide