There are many things that can go wrong with a swimming pool and cause it to need repair. Here are some of the most common: - Clogged filters or pumps - Calcium deposits or algae growth on the sides of the pool - Damage to the lining or surfaces of the pool - Leaks in the pool structure or plumbing

There are a few things that can ruin a swimming pool. One is algae, which can be prevented by using chlorine or other chemicals. Another is rust, which can be caused by either the metal in the pool or the water itself. And finally, cracks and leaks can develop in the pool lining and let water out, causing the level to drop and potentially ruining the equipment.