Dark Spots And Pool Floor

Black algae is a thread like growth that develops on rough surfaces in swimming pools.

Dark spots and pool floor. 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. It appears as dark black spots on the walls and floor of the pool and is slippery to the touch. If the staining has reached your pool steps and they need an extra scrub try jack s magic step stuff to whiten your pool steps back to brand new condition. Your first clue to diagnosing a pool stain is to check out it s color.

We think the bacteria can be washed into your pool area by flooding rains or when a septic tank overflows. A two step process that restores stained abs plastic. It also spreads slowly and is often mistaken for mold because it forms dark spots on your pool surface. This is common in highly trafficked swimming pools such as the gym pool.

Basically the calcium acts as a clear coat over the top of the dirt stained pool surface. However for most pools with light overall staining or spots here or there ez stain remover can do the job. This type of algae forms in a layered structure with the outermost layer protecting the lower layers. In the case of the gym pool above the problem is very likely called dirt scale this is caused by a layer of dirt being sealed over by a layer of calcium buildup.

Sometimes it can be fairly easy to get rid of stains but other times those hard to remove spots can take a bit more than a simple scrub. Scrub the black algae spots. I have been fighting w black algae for several weeks now on the floor of my pebble tech pool i wire brush 2 3 times a day so much so that i have loosened alot of pebbles i scrub chlorine tabs directly on spots have my fc up at 7 and have done 2 diff treatments using 2 diff brands of 32oz black algaecides and of course cleaned filters prob every 3 4 days. Pool stains on the wall or floor of a swimming pool can be caused by metals in the pool water or by an organic material left in the pool.

No matter how well you just brushed your pool you ll probably still see some spots where the black algae just didn t come loose. Black spot algae is unique because it grows in the walls or floor of your pool. Now you need to get up close and personal. You can use a putty knife a pumice stone or even a hand held wire brush to scrub the remaining black algae off the pool s surfaces.

Black algae have deep roots that work their way into. It often starts in areas with low circulation and will not brush away like other algae.