Coral Seas YELLOWOUT Yellow Out Pool Algaecide 2 lb Brown for Yellow and Mustard Algae
Coral Seas YELLOWOUT Yellow Out Pool Algaecide 2 Lbs.
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Coral Seas

Coral Seas YELLOWOUT Yellow Out Pool Algaecide 2 Lbs.

107 ratings
Coral Seas YELLOWOUT Yellow Out Pool Algaecide 2 Lbs.Coral Seas YELLOWOUT Yellow Out Pool Algaecide 2 LbsYellow Out for Swimming PoolsYellow OutYellow Out
Size3.81" x 3.83" x 7.25"

Key item features

  • Effective Algae Cleanup: Amazing Yellow Algae Cleanup Results! Yellow Out is a chemical breakthrough that provides impressive cleanup results when used before shock treatment.
  • Versatile Compatibility: Not affected by high levels of cyanuric acid and works well with salt chlorine generators, making it suitable for various pool systems.
  • Metal-Free Formula: Contains no metals, ensuring it can be used safely with all pool surfaces without causing damage.
  • Easy Dosage: Recommended dosage is 2 lbs. per 15,000 gallons of pool water, making it simple to measure and apply.
  • Convenient Packaging: Ships in 2 lb. containers, allowing for easy handling and storage. The more you buy, the more you save!
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Specs

Chemical standard type, ShockForm, PowderWeight, 2 lbModel, FBA_YO-2#Product line, Yellow OutRec. use, Swimming Pool

About this item

Product details

clean up pool algae quickly with the yellow out chlorine shock enhancing treatment. yellow out is a chemical breakthrough that, when used in conjunction with pool shock, eradicates yellow/mustard,
yellow out swimming pool chlorine shock enhancing treatment - 2 lbs.
  • 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.
  • Ships in 2 lb. containers – the more you buy, the more you save!
    • 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.
    • Ships in 2 lb. containers – the more you buy, the more you save!
info:
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Specifications

Chemical standard type

Shock

Form

Powder

Weight

2 lb

Model

FBA_YO-2#

Warranty

Warranty information

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Warnings

Customer ratings & reviews

4.4 out of 5 stars
stars
107 ratings58 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars73% (78)
  2. 4 stars8% (9)
  3. 3 stars8% (9)
  4. 2 stars3% (3)
  5. 1 star7% (8)

Reviews summary

Pros

  • : It activates quickly and follows clear directions.
  • : Quickly eliminates yellow and mustard algae from pool walls and water.
  • : Offers similar prices to other retailers.
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Showing 1-3 of 58 reviews

Oct 19, 2026
Reviewer name: Donald
Item details
Size: 3.81" x 3.83" x 7.25"
Sold and shipped byDohenys PoolSuppliesSuperstore
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Yellow Out very Good Product

Good product just as soon as I added to my 16,000 lb. inground pool I noticed the results on the next day.

Helpful?5U80U97265C2268950532
Oct 9, 2026
Reviewer name: Amy
Item details
Size: 4 x 2 lb.
Sold and shipped byDohenys PoolSuppliesSuperstore
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Yellow Algae in Pools

Worked perfectly to clear up yellow algae.

Helpful?5U80U97265C2268950532
Aug 21, 2026
Reviewer name: ilene
Item details
Size: 2 x 2 lb.
Sold and shipped byDohenys PoolSuppliesSuperstore
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Product worked perfectly and was half the price as that in local pool supply stores and other on line sites.

Helpful?5U80U97265C2268950532
Current price is $20.29
Price when purchased online
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  • Free Holiday returns until Jan 31

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Sold and shipped by Dohenys PoolSuppliesSuperstorePro Seller
4.458041958041958 out of 5 stars
4.5 stars out of 5, based on 1144 seller reviews(4.5)
Extended holiday returns
Free Holiday returns until Jan 31