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The Best 9 Algaecide for Pools of 2023 [And 1 to Avoid!]
B. B. Lykert
B. B. Lykert
July 17, 2023
PreviewBrandMy RatingPrice
Pool RX 101003 Swimming Pool Algaecide, 4 Pack, BluePool RX 101003 Swimming Pool Algaecide, 4 Pack, Blue9.4/10Check Price Now
Regal Algaecide 60 for Swimming Pools & SpasRegal Algaecide 60 for Swimming Pools & Spas9.4/10Check Price Now
Clorox Pool&Spa XtraBlue Algaecide 40 ozClorox Pool&Spa XtraBlue Algaecide 40 oz9.4/10Check Price Now
Clorox Pool&Spa Green Algae Eliminator2 32 ozClorox Pool&Spa Green Algae Eliminator2 32 oz9.2/10Check Price Now
In The Swim Super Pool Algaecide - 1 Quart Bottle: 1 qtIn The Swim Super Pool Algaecide - 1 Quart Bottle: 1 qt9.2/10Check Price Now
In The Swim Winter Swimming Pool Algaecide - 1 QuartIn The Swim Winter Swimming Pool Algaecide - 1 Quart9.2/10Check Price Now
Clorox Pool&Spa 43128CLX 42128CLX Pool AlgaecideClorox Pool&Spa 43128CLX 42128CLX Pool Algaecide9.0/10Check Price Now
Pool RXPool RX9.0/10Check Price Now
KemTekKemTek9.0/10Check Price Now
McGrayelMcGrayel1/10Check Price Now

Pool RX 101003 Swimming Pool Algaecide, 4 Pack, Blue

Pool RX 101003 Swimming Pool Algaecide, 4 Pack, Blue

The algaecide arrived quickly and was easy to use. The powder-based product was simple to spread around my pool, only taking me fifteen minutes or so. I noticed that the directions were quite clear, making sure I didn’t miss any steps or put too much - important for avoiding pool damage.

I opted for Pool RX because of its reputation as a top brand in algaecide for pools, and it certainly did not disappoint - within 24 hours my pool was sparkling clean with zero traces of algae! It also worked incredibly quickly; by the end of the day I could tell it had removed 85% of the algae from my pool.

Additionally, Pool RX is one of the few algaecides available that does not require you to shock your pool. This means you’ll be able to get your pool up and running with fewer chemicals involved!

Overall, I am very satisfied with this product. It effectively removed algae from my pool quickly and without having to add additional chemicals. Highly recommended!

Be sure to also check out these chlorine tablets that I also compared! Plus, here is the price history on Amazon:

Price history for Pool RX 101003 Swimming Pool Algaecide, 4 Pack, Blue on Amazon

Check Price on Amazon

Regal Algaecide 60 for Swimming Pools & Spas

Regal Algaecide 60 for Swimming Pools & Spas

The first thing I noticed was how easy it was to use. Simply add the right amount of REGAL algaecide for the size of your pool and let it sit in the pool overnight. The next day, my pool water was crystal clear and algae-free! It worked quickly and efficiently.

The smell wasn’t great while it was in my pool, but I didn’t really mind too much as I knew it would be gone after a few hours. And thankfully, when used correctly, there were no negative health effects on anyone or anything who came into contact with the treated water.

The price is slightly more expensive than other brands, however you get what you pay for; REGAL does an excellent job at getting rid of pesky algae and keeping it away for longer periods of time. Overall, I’m extremely satisfied with this product and highly recommend it to anyone looking for an effective algaecide treatment for their pool.

Be sure to also check out these pool test strips that I also compared! Plus, here is the price history on Amazon:

Price history for Regal Algaecide 60 for Swimming Pools & Spas on Amazon


Clorox Pool&Spa XtraBlue Algaecide 40 oz

Clorox Pool&Spa XtraBlue Algaecide 40 oz

The main appeal of this product is that it’s easy to use by simply adding it to the pool water. The directions are very straightforward, so even I could do it. It worked much faster than I expected; only two hours after adding the algaecide, I saw a significant decrease in algae growth.

The product also has a pleasant smell and texture, which isn’t always the case with other algaecide products. Any unpleasant odors quickly dissipate, leaving my pool smelling fresh and clean.

In addition, it seems to be more effective than some other algaecide products on the market. My friends have also been impressed with how well it works for me, and several have since switched to using Clorox as well.

Overall, I’m very satisfied with this product- it’s highly effective and reasonably priced. If you’re looking for an efficient and reliable way to eliminate algae from your pool then Clorox algaecide is definitely worth considering!

Be sure to also check out these coleman pool replacement parts that I also compared! Plus, here is the price history on Amazon:

Price history for Clorox Pool&Spa XtraBlue Algaecide 40 oz on Amazon


Clorox Pool&Spa Green Algae Eliminator2 32 oz

Clorox Pool&Spa Green Algae Eliminator2 32 oz

This algaecide is specifically designed for pools and does a great job of keeping them clean, clear, and algae-free.

The ease of use was my favorite part. All I had to do was dilute it with water as instructed on the label and then add it to my pool. After that I didn’t have to worry about algae growing again anytime soon.

The results were immediately visible – my pool was crystal clear the day after application! I also noticed that there were no longer any green streaks in the water either. Plus, this algaecide doesn’t contain any harsh chemicals or toxins, making it safe to use around pets and children.

Overall, Clorox Pool&Spa algaecide for pools did an incredible job of killing existing algae and preventing future growth at a pretty affordable price point. Highly recommended!

Be sure to also check out these half off ponds that I also compared! Plus, here is the price history on Amazon:

Price history for Clorox Pool&Spa Green Algae Eliminator2 32 oz on Amazon


In The Swim Super Pool Algaecide - 1 Quart Bottle: 1 qt

In The Swim Super Pool Algaecide - 1 Quart Bottle: 1 qt

The packaging was very easy to open and the directions were straightforward and easy to follow. After adding it to my pool, I could see a noticeable reduction in algae within 24 hours. I’m impressed with the results, as before I was having trouble keeping the algae away from my pool and now it seems like I can keep it away with no problem.

The algaecide itself is of good quality. It’s odorless, non-toxic, safe around pets and children, and comes in a large bottle that lasts a long time. The price is also very reasonable compared to other products on the market - you get what you pay for!

Overall I’m very happy with In The Swim algaecide for pools so far. It’s helped me tremendously in keeping my pool free from algae, which has been a huge help in keeping it clean and enjoyable for swimming again. Highly recommended!

Be sure to also check out these sauna accessories that I also compared! Plus, here is the price history on Amazon:

Price history for In The Swim Super Pool Algaecide - 1 Quart Bottle: 1 qt on Amazon


In The Swim Winter Swimming Pool Algaecide - 1 Quart

In The Swim Winter Swimming Pool Algaecide - 1 Quart

The product is easy to use to tackle pesky algae in pools, and it’s very effective. The instructions are clearly laid out on the packaging and I found it was simple to apply – just pouring the algaecide directly into the pool. It took only a few days for the algae to start clearing away, so I was quite pleased with the quick results!

Some drawbacks include a mild chemical smell that hangs around for a bit after application, which can be strong at first but dissipates over time. Additionally, I find that I need to apply this product about every three weeks or so. While these minor issues exist, it does quickly get rid of annoying algae and keeps my pool clean.

Overall, In The Swim algaecide for pools is an affordable and effective way to keep your pool looking great all summer long. It works fast, is easy to use and will help save you time in the long run not having to scrub up those slimy green patches.

Be sure to also check out these hard sided pools that I also compared! Plus, here is the price history on Amazon:

Price history for In The Swim Winter Swimming Pool Algaecide - 1 Quart on Amazon


Clorox Pool&Spa 43128CLX 42128CLX Pool Algaecide

Clorox Pool&Spa 43128CLX 42128CLX Pool Algaecide

I had been dealing with a stubborn green algae bloom in my pool for some time, so I decided to give Clorox Pool&Spa algaecide a try. After adding the product according to the instructions that came with it, the results were immediate and impressive. Within 24 hours, all traces of algae had disappeared! I was very pleased.

The product also seems very economical - only half a teaspoon per 10,000 gallons! This means that even though each bottle is relatively small and not very expensive, it should last me quite a while.

Finally, I appreciate that the packaging is labeled clearly and concisely so I know exactly what I’m getting each time I purchase it. This is important because when it comes to pool maintenance supplies, there are lots of products out there vying for attention.

Overall this product has greatly improved my outlook on pool maintenance and made keeping my pool clean and algae-free much easier than ever before. Highly recommended!

Be sure to also check out these sauna heaters that I also compared! Plus, here is the price history on Amazon:

Price history for Clorox Pool&Spa 43128CLX 42128CLX Pool Algaecide on Amazon


Pool RX

Pool RX

I’ve been using this product for over a month now and I’m extremely impressed. Before, my pool water had become so cloudy that I couldn’t even see the bottom. After applying this algaecide, however, it’s completely clear again!

The directions were easy to follow - all I had to do was turn off my pool filter, pour in the product, let it sit for several hours, then turn the filter back on. Within 24 hours the water began clearing up and was noticeably free of algae and other contaminants within 3 days.

As an added bonus, Pool RX does not require any additional maintenance after initial application. In fact, it only needs to be used once or twice a year as part of regular pool cleaning routine to keep it looking fresh.

Given its effectiveness and user-friendly instructions, I’d highly recommend Pool RX algaecide for pools. It does what it promises and saves me time with little effort involved on my part.

Be sure to also check out these portable saunas that I also compared! Plus, here is the price history on Amazon:

Price history for Pool RX  on Amazon


KemTek Algaecide for Pools

KemTek Algaecide for Pools

Highlights
Clear water
Effective
Easy to use
Removes algae
Reliable

The first thing that caught my attention about Kem-Tek algaecide is how it effortlessly transformed my pool into a crystal-clear oasis. With just a few drops, the water became so pristine that I could almost see my reflection in it. This product truly lives up to its reputation of being effective.

Using Kem-Tek algaecide is an absolute breeze. The instructions were clear and concise, leaving no room for confusion. The bottle design itself was user-friendly, with a convenient measuring cap that made dosing a cinch. It’s perfect for those who want quick and hassle-free pool maintenance.

One of the most impressive features of this algaecide is its ability to eliminate algae growth with ease. Even stubborn green algae didn’t stand a chance against Kem-Tek’s powerful formula. Within days, my pool went from looking like a murky swamp to a sparkling oasis.

What sets Kem-Tek apart from other brands is its reliability. This algaecide consistently delivers on its promises, ensuring that your pool remains algae-free throughout the swimming season. No more worrying about unsightly green patches or slimy walls – Kem-Tek has got you covered.

In conclusion, if you’re searching for an algaecide that guarantees clear water and gets the job done effectively, look no further than Kem-Tek brand algaecide for pools. Its easy-to-use nature and remarkable performance make it a top contender in the world of pool maintenance products. Trust me, once you try it, you’ll never want anything else in your arsenal of pool care supplies!

Be sure to also check out these garden shears that I also compared! Plus, here is the price history on Amazon:

Price history for KemTek Algaecide for Pools on Amazon


McGrayel

McGrayel

For starters, the algaecide was not effective in killing all types of algae as it claimed. I followed the instructions but saw no change in my pool. It did not remove the green tinge from my pool and the water still seemed cloudy after two weeks of using the product.

The bottle also comes in tiny amounts, making it difficult to use on a large pool or multiple applications. I was annoyed when I realized how much money I had spent despite its small size.

The algaecide has an unpleasant odor, likely due to its low concentration of active ingredients. The smell lingers throughout your home and is hard to get rid of even after several days.

In conclusion, McGrayel’s algaecide for pools is ineffective and a waste of money. Not only did it fail to do what it promised, but it also left an unappealing smell that didn’t dissipate for days. If you’re looking for an algaecide for your pool, look elsewhere.

Here is the price history on Amazon:

Price history for McGrayel  on Amazon


B. B. Lykert

B. B. Lykert

Chief of Reviews

I've always had a knack for reviewing products ever since I was a child - heck - I still kind of am a kid (at heart).

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