How can you get rid of black fungus -under the vinly liner in an inground swimming pool?

To get rid of black fungus under the vinyl liner in an inground swimming pool, follow these steps:

1. Clean the pool thoroughly. Scrub the walls and floor of the pool with a soft brush and a mild detergent. Be sure to remove all dirt, debris, and algae.

2. Drain the pool. Lower the water level below the area where the black fungus is located. This will make it easier to access and treat the fungus.

3. Apply a fungicide. There are several commercial fungicides available that can be used to kill black fungus. Follow the directions on the product label carefully.

4. Let the fungicide sit for the recommended time. This will give the fungicide time to kill the fungus.

5. Rinse the pool thoroughly. After the fungicide has sat for the recommended time, rinse the pool thoroughly to remove any residual chemicals.

6. Refill the pool. Fill the pool to the desired level.

7. Monitor the pool for any signs of black fungus. If you see any black fungus reappear, repeat the treatment process.

Prevention:

To prevent black fungus from growing in your pool, take the following precautions:

- Keep the pool clean by regularly brushing the walls and floor.

- Circulate the pool water regularly to prevent stagnation.

- Maintain the pool's pH level between 7.2 and 7.8.

- Keep the pool covered when not in use.

- Avoid using pool chemicals that can cause damage to the pool liner.