There are basically three schools of thought to attacking black algae.
Treat black algae vinyl liner.
It means we are nice and friendly and treat everyone in our web of relationships with care compassion and respect.
If the algae problem is extensive use a filter cleaner rather than just plain water.
Those pesky little spores stick to the cloth and hop off in the pool the first chance they get so be sure to use bleach to clean them.
Kayden manufacturing produces high quality inground vinyl pool liners right here in the u s a.
Having a clean filter that is functioning well and circulating the water.
Removing the liner and treating it directly or injecting through the liner sliding a feeder tube behind the liner treating the pool base through the surrounding soil etc.
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.
Black algae in a vinyl pool is possible but not very likely.
You can also use about 1 2 lb.
This can be treated with a good pool shock and an adequate chlorine level.
Let s talk about the first part nice people.
Black algae can get into your pool several ways but one of the most common is from swimming suits that have been in the ocean.
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.
If you have black algae in your pool you have black algae in your filter.
You have to kill the root.
When everything is right it is time to use the best algaecide to prevent the development of algae.
5 10 minutes max.
Treat the algae areas by rubbing with chlorine tablets or brush in granulated chlorine with a steel brush.
Pressure washing with chlorinated water prior to re surfacing should eliminate all algae affected areas.
Chemically treat the pool water bottom line i ve never seen any treatment from inside the pool work long term.
Treating it as such many technicians drop the ph and super chlorinate the water.
This sort of stain often is misdiagnosed as black algae arko says.
That doesn t mean we have a bunch of guys in the back singing kumbaya all day long.
Of calcium hypochlorite granular chlorine in an old sock to put on a spot.
Apply algae code to the areas prior to scrubbing with chlorine.
To prevent this many manufacturers incorporate biocides within the makeup of the vinyl but this isn t always a bulletproof solution.
Conduction a weekly scrubbing of your pool floors walls and steps.
Testing the water and balancing the various chemical inside it.