How do I get rid of Yellow/Mustard algae?

For yellow/mustard algae, we recommend Yellow Treat. Simply add 5 ounces (one bag or one capful) per 10,000 gallons, brush, then shock the pool. You can find more information in the Directions tab on the product page.

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• What does yellow/mustard algae look like?

  Yellow/Mustard Algae looks like mustard colored growth along the walls and in the shady areas of the pool. It's light, soft and slightly slimy to the touch. Example of mustard algae growing in pool We recommend using Yellow Treat.

• How do I get rid of Black algae?

  Black algae releases "spores" that will remain dormant and are invisible to the naked eye. Unfortunately these are impossible to completely destroy. We recommend first killing the black algae present, and following a strict regiment of preventative ...

• Can I swim in a pool with yellow/mustard algae?

  In general, yes: it is safe to swim with mustard algae.

• How do I get rid of Green algae?

  We have two products you can use for green algae. For lighter blooms, you can use Green Treat. Add 2 lbs. (one bottle) per 20,000 gallons, brush, and shock the pool. For heavier denser blooms of green algae, we recommend Swamp Treat. Start by ...

• I used Yellow Treat and my pool can't get a chlorine reading.

  Yellow Treat can sometimes interfere with chlorine readings, especially if you use too much and not enough chlorine. If that happens, don't shock. Just chlorinate as normal until the reading returns.  You shouldn't get algae in the meantime.