Black Spots Vinyl Pool Liner

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 spots vinyl pool liner.

If you have black algae in your pool you have black algae in your filter. If you have a vinyl lined pool do not use a wire brush as this can tear the liner shock or super chlorinate the pool using granular chlorine also known as calcium hypo chloride. Black algae in a vinyl pool is possible but not very likely. Brush every black algae spot with a steel bristle brush to remove the protective layer.

And while a vinyl pool is not nearly as susceptible to algae if you happen to notice an infestation a softer bristled brush can be used. 5 10 minutes max. Bacteria sometimes show up years after a pool has been installed. To remove persistent staining put a chlorine tablet into an old sock along with a few rocks and put it on the stained area.

Don t leave the chlorine on the spot for too long as it may bleach the liner. Black algae will dot the liner in black spots. This can be treated with a good pool shock and an adequate chlorine level. Repeat until the black spots go away.

The spots are black or blue green with raised heads not free floating. Already the magic of a black pool liner is starting to fade since it will not. Then scrub the spots again. Black stains on vinyl pool liner.

For metal stains either stain solution 1 the iron cobalt spot etching stuff or 2 the copper scale stuff may be indicated depending on the metals discovered. The algae harbors in rough areas of the pool plaster. For many vinyl liner stains the prescription from dr. Scrub with chlorine tablets.

Of calcium hypochlorite granular chlorine in an old sock to put on a spot. Nylon brushes will not work. You can also use about 1 2 lb. Beware this works great on plaster pools but don t try this to remove stains on a vinyl pool because it could remove the liner pattern.

In this video i explain how to remove stains from your swimming pool liner and give another tip on easy swimming pool maintenance to create a problem free s. The problem with this picture that most pool owners have is that this is not what a vinyl pool with a black liner will look like. In order for a reflecting pool to have that totally black look and mirror reflective surface it is usually only about a foot deep or so. Jack will be vinyl liner blue stuff a powerful sequestrant that prevents and removes stains on vinyl pools.

To remove them start with a rigorous brushing using a nylon brush. The resistant coating will become weak and break. If there s only a small amount of black algae in the pool you can probably get away with backwashing your pool filter for sand or de filters or rinsing the filter cartridge.