Black Mold On Vinyl Pool Liner

Your marks sound like organic stains that will fade away slowly as long as you keep chlorine in the pool.

Black mold on vinyl pool liner.

This type of algae forms in a layered structure with the outermost layer protecting the lower layers. We think the bacteria can be washed into your pool area by flooding rains or when a septic tank overflows. Bacteria sometimes show up years after a pool has been installed. Over the last 12 yrs i have probably looked at over 100 inground vinyl pools with this black mold growth under the liner.

Vinyl pools are breeding grounds for mold and mildew. Mold and mildew thrive in damp dark areas which make vinyl pools the perfect breeding ground. No matter what the size any pool is susceptible to mold and mildew growth. It appears as dark black spots on the walls and floor of the pool and is slippery to the touch.

The problem area will lighten up for 3 5 days then come back to its original color size. Going through the readings the cya is just a bit low. To prevent this many manufacturers incorporate biocides within the makeup of the vinyl but this isn t always a bulletproof solution. Vinyl pools come in varying sizes from baby pools to family size pools.

Black algae is a thread like growth that develops on rough surfaces in swimming pools. Step 3 remove mold be aware that a vinyl sided pool will need to be treated more delicately. Black algae in pools is similar to that which can be found in between bathroom shower tiles and on silicone seams near the bathtub. First black alge mold is pretty uncommon for vinyl liners.

This is a stabilized chlorine that will add cya into the pool. Alot of people initially treat it chemically as a algae growth major shock treatment in addition to a special algaecide. Begin by cleaning the filter as this can harbor mold spores making all your work to get rid of black mold for nothing as the problem will simply return to the pool because it will live on in the filter. This is because it digs into the surface and creates layers for itself like an onion.

If your pool uses a sand filter replace the sand. As long as you are losing fc overnight you still have something organic in the water that needs to be taken care of so you should continue shocking. It happens more with plaster. If you have black or grey cloud like stains on the floor of your in ground vinyl liner they are most likely caused by bacteria that is living in the ground under your pool.

Black algae is almost unheard of in vinyl liner pools.