It could be a number of things, but the most likely cause is that your pool is suffering from an algae bloom. Algae blooms can occur for a number of reasons, including warm weather, sunlight, and even contamination from swimmers. The good news is that algae blooms are relatively easy to fix with the right chemicals and some elbow grease.
If you suspect that your pool is suffering from an algae bloom, the first thing you should do is test the water. You can purchase a water testing kit at your local hardware store or online. Once you have your results, you’ll need to add the appropriate chemicals to your pool in order to kill the algae. This can be a bit of a trial and error process, so it’s important to follow the directions on the chemical bottles carefully.
Once you’ve added the chemicals, you’ll need to brush the algae off of the walls and floor of your pool. This can be a tedious process, but it’s necessary in order to get rid of all of the algae. You may also need to vacuum your pool in order to get rid of all of the algae and debris.
After you’ve treated your pool for an algae bloom, it’s important to take some preventative measures in order to keep it from happening again. First, you should shock your pool on a regular basis. This will kill any algae that might be present in your pool. You should also make sure to keep your pool clean and free of debris. This can be done by skimming it on a daily basis and vacuuming it weekly. Finally, you should make sure to test your pool’s water regularly and add the appropriate chemicals as needed. By following these simple tips, you can keep your pool clean and algae-free all season long!