10 Best Swimming Pool Algaecides

1. In The Swim Super Pool Algaecide – 1 Quart

In The Swim Super Pool Algaecide - 1 Quart


2. Pool RX 101066 6 Month Algaecide Treats 20k-30k gallons, Black

Pool RX 101066 6 Month Algaecide Treats 20k-30k gallons, Black


3. Clorox Pool&Spa Green Algae Eliminator2 32 oz

Clorox Pool&Spa Green Algae Eliminator2 32 oz


4. Clorox Pool&Spa XtraBlue Algaecide 40 oz

Clorox Pool&Spa XtraBlue Algaecide 40 oz


5. In The Swim Swimming Pool Algaecide 60 Plus – 1 Quart

In The Swim Swimming Pool Algaecide 60 Plus - 1 Quart

107 reviewes

As one reviewer explains: “ Just what the Pool Dr. ordered “. “ Works Incredibly Well ”, writes M. S. Maly . Priscilla Winn concludes, “ Clear water in a day “.

Opened the pool this season to a cloudy mess (which means I need a winter cover). I had some basic (cheap) Algaecide, but that wouldn’t take care of this mess. So I dumped what I had of the cheap stuff in, and order this thru Amazon. I was a bit cheaper, by a few dollars, at the In the Swim website, but they then charged you ten bucks to ‘handle’ it, although they advertised free shipping. It came in 1 day, instead of 2, yeah! I dumped the whole thing in and ran my filter for ~3 days straight. This product killed the algae, then it dropped to the bottom of the pool. I vacuumed that up, then back-washed the filter, and ran the filter over night for 1 more night, and the algae bloom is but a memory now.

Just what the Pool Dr. ordered

I did not know there were great differences among algaecides. The first one took me 9 days to quit putting up brown, scummy foam and not dealing with the algae problem. After the first bottle, in a 25,000 galloon pool, I could finally see the bottom and in three days my problem went away. I used it all summer as recommended on the bottle and it was simply terrific. It never affected the PH or chlorine levels. Because of the warm winter we had in Iowa, this was the first time in 31 years I ever had an algaecide problem. But, now I will never be without this product. I am not an expert, but this worked.

Works Incredibly Well

I’ve used this for years and I think it is the best product to use when you first open your pool. It kills every kind of algae that grew over the winter and it keeps it out of your pool all summer. It is excellent value for your money. Directions are simple and you only use a small dose to keep it working all summer long.

Clear water in a day


6. GLB Pool & Spa Products 71114 1-Quart Strike Out Algaecide

GLB Pool & Spa Products 71114 1-Quart Strike Out Algaecide


7. Pool RX 101001 6 Month Algaecide Blue Treats 7.5k-20k gallons, Single, Unit

Pool RX 101001 6 Month Algaecide Blue Treats 7.5k-20k gallons, Single, Unit


8. 2 PACK – United Chemical No Mor Problems 1qt NMP-C12

2 PACK - United Chemical No Mor Problems 1qt NMP-C12


9. HTH 67032 Super Algae Guard Algaecide for Swimming Pools, 1 qt

HTH 67032 Super Algae Guard Algaecide for Swimming Pools, 1 qt


10. Biodex Laboratories BSK132 Skill-It, 1-Quart

Biodex Laboratories BSK132 Skill-It, 1-Quart


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