What would cause the sides of your fiberglass pool to bubble up and how can you get rid of it?

Hi- There can be several reasons for blistering in fiberglass pools. If the pool is new- the chances are that it is a manufacturing defect so you should contact the manufacturer. If the pool is older- it is probably osmotic blistering which is common in fiberglass boats. For more information on this look up "osmotic blisters" on google. The cure is usually to let it thoroughly dry out, fix the blisters, and paint with a good epoxy that will keep moisture out. Hope this is of help to you. The previous response sounde like the blisters are soft like bubbles. The blisters on my pool are hard - can't be pushed down with hand pressure.