I read someone’s post about stain on new pebble Tec and I have the same problem! It’s a brown stain that I think is from acorns from the Oak Tree across the street and the squirrel’s bring it to my Pine Tree which hangs alittle over the pool and they drop the acorns after eating what they want! Does anyone know what type of stain remover required to remove them from Pebble Tec blue! I have the largest chips on my Pebble Tec and I don’t want to ruin it! HELP ME PLEASE