2lb Natural Chemistry Yellow Out

2lb Natural Chemistry Yellow Out

Regular Price: $19.99 | You save 30%
In Store Only


Yellow Out is compatible with all pool surfaces and is to be used prior to shock treatment to kill green or mustard algae. Yellow Out has no added metals and is not affected by high cyanuric acid levels. This product can be used with salt generators, and results usually take 24 hours to occur.

Directions for Use:

  • NEVER pre-mix Yellow Out with chlorine. NEVER add Yellow Out to a bucket or pail. NEVER vacuum pool immediately after adding Yellow Out. NEVER add to skimmer basket or suction line.  If not mixed in the pool, a very strong reaction with chlorine can occur.
  • Balance water chemistry.  Shake well to break up lumps. Product lumping in transit is normal.
  • Add 2lbs Yellow Out per 15,000 gallons of pool water.  ADD YELLOW OUT DIRECTLY TO POOL. Spread half along the pool perimeter.  Concentrate the rest where the algae is thickest.  Do not add more than the recommended dose.
  • Wait 5 minutes, then add 2lbs powdered chlorine per 15,000 gallons of pool water.  ADD POWDERED CHLORINE DIRECTLY TO POOL.
  • Circulate pool water continuously for 24 hours.  Repeat step 4 adding additional chlorine after 12 and 24 hours.
  • After clean up return chemical balance to normal.