This is my third year with my fiberglass pool. This past weekend, I feel some areas of the pool wall had dozens of small bumps. I just goggled on "blisters on fiberglass walls" and from reading some of the articles, it sounds this will happen to every fiberglass pool sooner or later. Does anybody have any firsthand experience with the blistering? If so, what did you do to correct the problem? I plan on contacting the manufacturer as soon as I am able. Thanks in advance.