What You’ll Need
One bottle per 20,000 gallons
Regular nylon pool brush or 50/50 stainless brush
Approximately 2 pounds/gallons per 10,000 gallons of pool water of your preferred pool shock.
At a Glance
4 Steps to Get Rid of Black Algae
Step 1: Add Swamp Treat™
Add one (1) bottle of Swamp Treat™ per 20,000 gallons of pool water.
TIP: Round up
Round your pool up to the nearest 5,000 gallons for dosing.
Step 2: Brush
Brush the walls of the pool. You’ll need to get as much of the black algae off the surface as possible, so some scrubbing might be needed.
TIP: Use a 50/50 brush on plaster
For plaster you’ll want to use a 50% stainless steel brush (sometimes referred to as an “Algae Brush”) to get as much black algae in the pours of the plaster.
Step 3: Shock
Add approximately 2 pounds/gallons of shock per 10,000 gallons – cascading it around the pool.
TIP: Consider using trichlor
For best results, we recommend using Trichlor-s-triazinetrione (usually referred to as “trichlor”) granules for shocking. For color/painted/vinyl surfaces don’t allow the granules to sit on the surface or it could lead to bleaching.
Step 4: Filter
Set your system back to filter, and turn the pump on. Allow to filter for 24 hours
Black Algae Do's
- Add the specified amount of Swamp Treat™ for your pool’s volume.
- Round pool volume up to the nearest 5,000 gallons.
- Keep your filter running continuously to help get rid of the dead algae.
- Back wash your filter when the filter pressure rises above 10 psi than normal.
Green Algae Don'ts
- Don’t add more Swamp Treat™ than needed for your pool’s rounded volume. Swamp Treat™ works in ratio to your shock.
- Don’t forget to add shock when using Swamp Treat™. Swamp Treat™ needs shock to work.
- Don’t pour shock directly on colored surfaces. This can discolor your surface.
Black Algae Prevention Tips
TIP 1: Run your filter longer in the summer
In the summer months run your filter a little longer than you normally would in winter months.
TIP 2: Add more sanitizer in warmer weather
As the weather gets warmer, consider adding more sanitizer – either by adding extra chlorine tabs or turning up your chlorinator.
TIP 3: Adjust your return jets
Adjust your pool return jets to maximize water movement and reduce “dead spots” where algae is most likely to grow.
TIP 4: Use a Preventative
Consider using a preventative algicide such as No Mor Problems® with your sanitizer to keep algae from returning.