Green Ring Around My Pool Liner?
THANKS BUT THE ONLY PROBLEM IS THE RING AROUND THE POOL. MY WATER IS A CLEAR AS DRINKING WATER MY HUSBAND TAKES CARE OF IF FAITHFULLY. VACUMING, CLORINE, BAKING SODA. IT IS BEAUTDFUL. ALL BUT THE RING. WE TRIED SCRUBING WITH MANY THINGS BUT IT DOES NOT WORK...
