What You’ll Need
One bag or one capful per 10,000 gallons
Regular nylon pool 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 Mustard Algae
Step 1: Add Yellow Treat®
Add one bag or one capful (5 oz.) of Yellow Treat® per 10,000 gallons of water in the areas with the most mustard algae.
TIP: Round Up
Round up your volume to the nearest 5,000 gallons.
Step 2: Brush
Brush the surface of the pool, concentrating on areas with the most mustard algae. One good push of the brush over an area should do the trick.
Step 3: Shock
Shock the pool with your choice of chlorine – using about 2 pounds/gallons of chlorine per 10,000 gallons of pool water. Refer to the directions on your chlorine for “super-chlorination” specific dosing.
Step 4: Filter
Let the filter clean up the dead mustard algae, and backwash the filter when the pressure gets high. Refer to the filter manual for back-washing recommendations.
TIP: Run your filter for 24 hours
To speed things up, set your filter to run continuously and backwash the next day.
Mustard Algae Do's
- Add the specified amount of Yellow 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 mustard algae.
- Back wash your filter when the filter pressure rises above 10 psi than normal.
Mustard Algae Dont's
- Don’t add more Yellow Treat® than needed for your pool’s rounded volume. Yellow Treat® works in ratio to your shock.
- Don’t forget to add shock when using Yellow Treat®. Yellow Treat® needs shock to work.
- Don’t pour shock directly on colored surfaces. This can discolor your surface.
Mustard 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 mustard 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 mustard algae from returning.