Product Review

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. If you have a chlorine generator, that's no problem either as Yellow Out is incredibly versatile. Once you follow the instructions for balancing your pool and add the recommended dosage of Yellow Out, add a shock treatment five minutes later and then run your pump and filter for 24 hours. Dosage: 2 lbs. per 15,000 gallons.