Black Spots In Pool Not Algae

Black spot can be hard to remove once it has attached itself to the walls of your pool or embedded in grout between tiles as it is chlorine resistant so prevention is better than cure.

Black spots in pool not algae. This is a rather lengthy topic so we ve created an article. I did some reading here and. After the algaecide has run its course shock the pool by adding granular chlorine to kill the remaining algae then shock it again after 3 days. It is very uncommon for black spot algae to form in a fibreglass pool.

The pool cleaning process will be very much the same for both types of pools. Ever since i ve used the algeacide and tablets i ve had these black spots on the pool floor. I thought it was algea for a while so was shocking the pool but they just wouldn t go away. How easily it brushes off.

If you have black algae in your pool you have black algae in your filter. Don t forget to use some black spot remover to make sure that the not only does the black algae brush off easier but they stay off as well. Any algae including black algae tend to bloom in bodies of pool water with a high ph level low chlorine bad circulation and filtration and not enough chlorine. This is because black spot algae cannot attach in fibreglass pools because the surface of the pool is so smooth.

For this reason black spot is not able to get properly embedded in your pool as it does in pebble pools. However the black spots may look exactly like black spot algae but most times it is not an algae that you are seeing but mineral and metal staining. The picture shows what black spot algae in a fibreglass. To treat black algae in your swimming pool start by brushing the sides and bottom of your pool to break up the algae so it s easier to remove.

It will flourish in a warm pool with lots of sunny days. 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. Nylon brushes will not work. If the algae problem is extensive use a filter cleaner rather than just plain water.

Trichlor shock which can be found at many large retailers may also be used. Finally vacuum the pool to remove the dead algae and wash the pool filters and equipment with bleach so. So i thought it couldn t be algea. I would vacuum to waste and they would come right back.

With an above ground pool you will get the black algae that start to form together as clumps in the water. Blue green or black spots that aren t free flowing it ll have a bumpy texture. The problem with black algae is that it has roots that grow into the cracks of the inground pools plaster. Perhaps consider an additional dose of acid and chlorine and constant brushing.

If it does you know how to kill it just be more aggressive next time. Brush every black algae spot with a steel bristle brush to remove the protective layer. Then one day while i was vacuuming i felt the spot and it felt like dirt very grainy. 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.

If it comes off easily it s not black algae. Vacuum any waste to prevent any spores from recirculating into the filtration system vacuum any debris on the floor of the pool.