Natural Chemistry Green Aid is a powerful solution for eliminating green and mustard algae in pools. This advanced pool cleaner transforms swampy, algae-filled water into crystal-clear, inviting pools quickly and efficiently. For optimal results, use Green Aid prior to applying EPA-Registered chlorine shock products, enhancing the clarity of extremely green pools in just three days. Enjoy a pristine swimming experience with this highly effective algae remover, specially designed for pool maintenance and restoration.