No, according to the CDC, animals do not usually pose health risks to swimmers, even if one dies. If a pool is maintained well, chlorine should kill any germs left by an animal within minutes. That said, homeowners should remove the animal as soon as possible and clean and disinfect the pool afterward.

Yes, small pool leaks are fixable with waterproof patches and sealants. It is always best to avoid draining a pool if you can, since doing so safely takes time, patience, and a whole lot of water to refill it. Larger pool leaks may require draining, but in this case, it's best to call in a professional.

The cost to repair a swimming pool varies widely, with an average cost around $700. The total expense can range from as little as $10 for simple DIY fixes to over $20,000 for extensive overhauls. Key factors influencing the cost include the type of pool (in-ground vs. above-ground), its size, and the specific repairs needed. For above-ground pools, repairs typically cost between $100 and $700. For in-ground pools, costs are higher, generally ranging from $350 to $2,700. Common repairs include patching liners, fixing plumbing or electrical lines, and repairing equipment like pumps and filters. More complex issues, such as fixing a cracked beam, can cost $6,000 or more, while major projects like resurfacing a concrete pool can cost between $10,000 and $20,000.

How often you should add water to your pool depends on how quickly the water evaporates. Keep an eye on your skimmer box, if you have one. Top up the water in your pool if you notice the water levels are lower than the bottom third of your skimmer. This helps prevent damage to your pump. 

Replace all the water in your pool every five to seven years, depending on how often you use your pool, the weather, and whether or not you close your pool for the winter.