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

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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 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.

• Can I swim in a pool with green algae?

  In general, yes: it is safe to swim with green algae. However if the algae bloom is large enough to prevent being able to see the main drain, you shouldn't swim. Poor water visibility presents a significant drowning risk.

• How often should I add Yellow Treat to my pool?

  You should only use Yellow Treat when you have Mustard Algae. To prevent algae we recommend using No Mor Problems.

• Can I swim in a pool with black algae?

  For the most part, yes. However black algae (cyanobacteria) can be toxic if ingested in large enough quantities. While swimming, be careful not to ingest any of the black algae growth.