Clean up pool algae quickly with the Yellow Out chlorine shock enhancing treatment. Yellow Out is a chemical breakthrough that, when used in conjunction with pool shock, eradicates yellow/mustard, green, brown, and pink algae from swimming pools. This powerful product is simple to use, requires no brushing, and cleans up algae gently without the use of harsh chemicals that can damage and stain pool surfaces. Yellow Out is also safe, non-toxic and can be used on all pool surfaces, including vinyl liners.
- Compatible with pools operating a chlorine generator
- Dosage: 2 lbs. per 15000 gallons