I have a 4 week old pool that we are just starting to use, I have been keeping the levels good and brushing. I am getting a lot of bloody big toes. The kids and me are skinning the bottoms of our big toes. I don't know if this is from the fresh brushed concrete deck, or the new plaster pool. The pool does feel a little rough around the steps and the areas where the wall meets the floor. Is this normal? Or am I not brushing good enough? Or do we need to get the PB to sand some areas?