Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs.

Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs.

Regular price$24.95
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Shipping calculated at checkout.

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  • In stock, ready to ship
  • Inventory on the way

Use 2 lbs of Yellow Out per 15,000 gallons of water prior to shock treatment with an EPA-registered chlorine that kills yellow algae. Yellow Out works great for all pools, including those with salt chlorine generators and plaster finishes. Both of these circumstances can create a higher pH in pool water (especially newer plaster), which happens to be the ideal condition in which Coral Seas products work. The recommended pH level is 7.8 or higher for ideal performance. This is opposite of traditional algae treatment methods which require a lower pH for chlorine to be more efficient. Yellow Out are also not affected by higher levels of cyanuric acid.


  • Amazing Yellow Algae Cleanup Results!
  • Yellow Out is a chemical breakthrough! Amazing cleanup results when used prior to shock treatment with an EPA-Registered chlorinating compound that kills green or mustard algae.
  • Not affected by high levels of cyanuric acid and works well with salt chlorine generators!
  • NO metals added – can be used with ALL pool surfaces! Dosage: 2 lbs. per 15,000 gallons of pool water.

Safety Data Sheet (SDS) 

Orders over $50 qualify for free delivery.

Standard Shipping: All orders will be delivered with 2-7 days of order.

Expedited shipping: For expedited shipping please email villagespapools@gmail.com with your name, address and item you wish the purchase and a quote will be provided for you.

Local Delivery: Deliveries are made Monday thru Friday. All orders placed before 11 AM will qualify for same-day delivery. Orders placed after 11 AM will be delivered the next delivery day.