Yellow Out
Yellow Out
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Coral Seas

Yellow Out

Yellow OutYellow OutYellow Out for Swimming PoolsCoral Seas YELLOWOUT Yellow Out Pool Algaecide 2 LbsYellow Out
Size20 lbs

Key item features

  • 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!

About this item

Product details

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Warranty

Customer ratings & reviews

4.3 out of 5 stars
stars
91 ratings50 reviews
How item rating is calculated
  1. 5 stars71% (65)
  2. 4 stars9% (8)
  3. 3 stars8% (7)
  4. 2 stars3% (3)
  5. 1 star9% (8)

Reviews summary

Pros

  • : Simple directions make it easy.
  • : 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 50 reviews

Dec 10, 2025
Colleen
Item details
Size: 3.81" x 3.83" x 7.25"
Sold and shipped byDohenys PoolSuppliesSuperstore
5 out of 5 stars review

Verified Purchase

Struggled with my pool for years. Once I determined it was mustard or yellow algae this product made all the difference. Only issue was determining and measuring the correct amount as my pool is smaller and I needed less than the container. However, I figured it out and this solved my problems. Now my pool is looking fantastic, my water stays balanced and I use far less chemicals in my pool maintenance now. Great product

Helpful?5U80U97265C2416044492
May 31, 2026
TERRI
Top Reviewer
Item details
Size: 3.81" x 3.83" x 7.25"
Sold and shipped byDohenys PoolSuppliesSuperstore
5 out of 5 stars review

Verified Purchase

Algae Cleaner

This product works well in an algae pool but make sure you look at the amount prior to buying it. Measure your pool up against the amount you will need. Size makes a difference.

Helpful?5U80U97265C2416044492
May 28, 2025
TheGman
Item details
Size: 3.81" x 3.83" x 7.25"
Sold and shipped byDohenys PoolSuppliesSuperstore
5 out of 5 stars review

Verified Purchase

Yellow Out Algaecide Eliminator

Yellow Out Pool Algaecide is the best product on the market for eliminating that yellow Algae that accumulates in pools, it's easy to use, fast acting, price is very fair and great shipping time. It's easy to place an order using Walmart .com shopping on line.

Incentivized Review
Helpful?5U80U97265C2416044492
Current price is $149.99
Price when purchased online
  • Free shipping
  • Free 30-day returns

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Arrives by Fri, Jul 31
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Sold and shipped by Dohenys PoolSuppliesSuperstorePro Seller
4.45 stars out of 5, based on 1020 seller reviews(4.5)
Free 30-day returns