HTH Pool Care Algae Guard 10 — Liquid (Form), 119 oz — Pool algaecide to prevent and control algae
HTH Pool Care Algae Guard 10 — Liquid (Form), 119 oz — Pool algaecide to prevent and control algae
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HTH Pool Care Algae Guard 10 — Liquid (Form), 119 oz — Pool algaecide to prevent and control algae

4.6 stars out of 553 reviews
(4.6)|
553 ratings
HTH Pool Care Algae Guard 10 — Liquid (Form), 119 oz — Pool algaecide to prevent and control algaeHTH Pool Care Algae Guard 10 for Swimming Pools Liquid 119oz2 pack HTH Pool Care Algae Guard 10 for Swimming Pools Liquid 119oz
Pack Size:Single

Key item features

  • Algae Control: This pool algaecide is specifically formulated to both prevent and effectively kill existing algae in pool water.
  • Rapid Action: The liquid formula is fast-acting, allowing for swimming just 15 minutes after application.
  • Non-Foaming Formula: HTH Pool Care Algae Guard 10 is designed to be non-foaming, ensuring a clear pool surface after use.
  • Direct Application: The algaecide is applied directly to the pool water while the pump is running for optimal distribution.
  • Versatile Usage: It can be used for opening the pool, as a regular maintenance product every 3-5 days, or for closing the pool at the end of the swimming season.
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Current price is $16.97
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Customer ratings & reviews

4.6 out of 5 stars
stars553 ratings370 reviews
How item rating is calculated
  1. 5 stars79% (436)
  2. 4 stars13% (72)
  3. 3 stars3% (15)
  4. 2 stars2% (9)
  5. 1 star4% (21)

Reviews summary

Pros
  • : Offers good value for its performance.
  • : Kills and prevents various types of algae.
  • : Has a clean, non-chemical scent.
Neutral
  • : Can be highly effective, but may not last in all cases.
Cons
  • : May produce too much foam in certain pool systems or with overdose.
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Showing 1-3 of 370 reviews

Sep 7, 2025
Kenneth
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Bought it early in the spring Bought 5 jugs to do me all season.Worked great actually had 4 jugs left over.water stayed the clearest and cleanest it has in the past few years.

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Jun 7, 2025
Betty
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Simple solution to fighting pool algae.

My husband was pleased with this product. It killed all the algae in our pool. We live in Texas and have had an unusual amount of rain this year. We will keep a container of this product handy to keep our pool crystal clear.

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Jun 25, 2025
Robert
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Gets Rid of Algae

Cleared up the pool within the week of opening it. Good for weekly maintenance thereafter. It's been 100 degrees 3 straight days and no issues with algae.

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