I've finished repairing my spa after several ordeals (the previous owner had let water freeze in it). In the repair process, several panels of fiberglass insulation had to be ripped out because they were water damaged and lost their shape - becoming a big pile of insulation. Does anyone know where I could find some sort of replacement for this? The fiberglass insulation in use is blue-green and held within a clothlike outer-shell. I am open to some alternatives as well, I just want to ensure it has enough side insulation when the cold weather comes.