Black Mold On Vinyl Pool Liner

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.

Black mold on vinyl pool liner.

These micro organisms develop colonies behind the liner and left unchecked eventually will permeate through to the printed side appearing as dark gray or black splotches. This is because it digs into the surface and creates layers for itself like an onion. Going through the readings the cya is just a bit low. Alot of people initially treat it chemically as a algae growth major shock treatment in addition to a special algaecide.

It happens more with plaster. First black alge mold is pretty uncommon for vinyl liners. Vinyl pools come in varying sizes from baby pools to family size pools. Step 3 remove mold be aware that a vinyl sided pool will need to be treated more delicately.

It appears as dark black spots on the walls and floor of the pool and is slippery to the touch. This is a stabilized chlorine that will add cya into the pool. This type of algae forms in a layered structure with the outermost layer protecting the lower layers. Your marks sound like organic stains that will fade away slowly as long as you keep chlorine in the pool.

If your pool uses a sand filter replace the sand. We think the bacteria can be washed into your pool area by flooding rains or when a septic tank overflows. 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. To prevent this many manufacturers incorporate biocides within the makeup of the vinyl but this isn t always a bulletproof solution.

Black algae is a thread like growth that develops on rough surfaces in swimming pools. Vinyl pools are breeding grounds for mold and mildew. Over the last 12 yrs i have probably looked at over 100 inground vinyl pools with this black mold growth under the liner. When cleaning mold and mildew from the pool equip yourself with the proper safety gear during the entire cleaning process.

Bacteria sometimes show up years after a pool has been installed. Mold and mildew thrive in damp dark areas which make vinyl pools the perfect breeding ground. Black algae is almost unheard of in vinyl liner pools. The problem area will lighten up for 3 5 days then come back to its original color size.

No matter what the size any pool is susceptible to mold and mildew growth.