Is there anything that can be done about vinyl plague- black fungus- underdeath the liner in an inground pool?

Vinyl plague is a type of fungus that can grow under the vinyl liner of an inground pool. It can cause the liner to become discolored and unsightly, and it can also lead to leaks. If you think you may have vinyl plague, it's important to take action right away to treat the problem.

Step 1: Inspect the Pool Liner

The first step is to inspect the pool liner to confirm that you have vinyl plague. Look for any dark spots or discoloration on the liner. If you see any black spots, you may be able to remove them by scrubbing the liner with a soft cloth and a mild detergent.

Step 2: Clean the Pool

If the dark spots do not come off with scrubbing, you will need to clean the pool thoroughly. Use a powerful pool vacuum to remove any debris from the pool. You should also clean the pool filter and backwash the pool.

Step 3: Apply a Vinyl Plague Treatment

After the pool has been cleaned, you can apply a vinyl plague treatment. There are several different types of treatments available, so choose one that is appropriate for your pool.

- Chlorine: Chlorine is a powerful disinfectant that can kill the fungus that causes vinyl plague. You can add chlorine to the pool water according to the directions on the product label.

- Sodium hypochlorite: Sodium hypochlorite is a strong oxidizer that can also kill the fungus. It should be used carefully according to the directions on the product label to prevent damage to the pool equipment.

- Biocides: Biocides are specifically designed to control bacteria and fungi in pools. Many common biocides are copper-based and will be effective against common types of pool fungus.

Step 4: Keep the Pool Clean

The best way to prevent vinyl plague is to keep the pool water clean. This means keeping the pH levels balanced and regularly removing any floating debris. You should also try to avoid using copper-based algaecides, as they can contribute to the growth of vinyl plague.

Note: If you have a vinyl liner, it is important to have it inspected by a professional regularly. This will help you catch any problems early on and can prevent them from becoming more serious.