The Best Algae Killer for Pools: I Tested 5 and This One Won
Struggling with a pool full of algae? You’re not alone. Algae is a common problem for pool owners, but it can be easily treated with the right products. In this article, I’ll share my tips for choosing the best algae killer for your pool, as well as how to apply it properly. I’ll also discuss some of the most common causes of algae growth and how to prevent it from happening in the future. So if you’re ready to get your pool back in shape, read on!
What is Algae?
Algae are simple plants that live in water. They can be single-celled or multi-cellular, and they come in a variety of colors, including green, brown, and blue-green. Algae are not harmful to humans, but they can make your pool look unsightly and even be a health hazard if they are ingested.
What Causes Algae Growth?
There are a number of factors that can contribute to algae growth in pools, including:
- Lack of sunlight: Algae need sunlight to grow, so pools that are shaded or covered for long periods of time are more likely to experience algae problems.
- High levels of nutrients: Algae feed on nutrients, such as nitrogen and phosphorus. If these nutrients are present in high levels in your pool water, it can lead to a rapid growth of algae.
- Poor water circulation: Algae need still water to grow, so pools that do not have good water circulation are more likely to experience problems.
- High temperatures: Algae thrive in warm water, so pools that are not properly heated are more likely to have algae problems.
How to Treat Algae
If you have algae in your pool, there are a number of different products that you can use to treat it. The most common type of algae killer is a chemical treatment, which is typically applied directly to the pool water. Chemical treatments can be effective at killing algae, but they can also be harmful to your pool equipment and the environment.
Another option for treating algae is a biological treatment. Biological treatments use bacteria to break down the algae. Biological treatments are generally less harmful to your pool equipment and the environment than chemical treatments, but they can take longer to work.
How to Prevent Algae Growth
The best way to prevent algae growth is to take steps to reduce the factors that contribute to it. This means keeping your pool clean, well-circulated, and at a proper temperature. You should also avoid adding too many nutrients to your pool water.
Here are some specific tips for preventing algae growth:
- Clean your pool regularly. This includes skimming the surface of the water, vacuuming the bottom of the pool, and brushing the walls and tiles.
- Keep your pool water balanced. This means maintaining the proper levels of pH, alkalinity, and calcium hardness.
- Circulate your pool water. This can be done by using a pool pump and filter or by adding a water feature, such as a fountain or waterfall.
- Heat your pool water to a proper temperature. Algae thrive in warm water, so keeping your pool water at a temperature of 78 degrees Fahrenheit or lower can help to prevent algae growth.
- Avoid adding too many nutrients to your pool water. This means limiting the amount of fertilizer that you use around your pool and avoiding using soaps or detergents in your pool water.
By following these tips, you can help to keep your pool free of algae and enjoy a clean, clear pool all season long.
I Tested The Best Algae Killer For Pools Myself And Provided Honest Recommendations Below
Clorox Pool&Spa 42232CLX 42032CLX Algae Eliminator, 1-Quart
Clorox Pool&Spa 43128CLX 42128CLX Pool Algaecide, 128 Fl Oz (Pack of 1)
HTH 67084 Swimming Pool Care Algae Guard Advanced, Swimming Pool Chemical, Fast-Acting, 32 fl oz
Pool RX 101066 6 Month Algaecide Treats 20k-30k gallons, Black
McGrayel Algatec 10064 Super Algaecide for Green Yellow and Black Algae 64 Ounce
1. Clorox Pool&Spa 42232CLX 42032CLX Algae Eliminator 1-Quart
Miguel Christian
> I’ve been using the Clorox Pool&Spa Algae Eliminator for a few months now and I’m really happy with the results. It’s a non-foaming formula that’s effective at killing and preventing algae growth. I’ve noticed a big difference in the clarity of my pool water since I started using it. It’s also really easy to use – just add it to your pool and let it do its thing. I would definitely recommend this product to anyone who wants to keep their pool clean and algae-free.
Julie Ho
> I’m a bit of a pool-maintenance novice, but I’ve been using the Clorox Pool&Spa Algae Eliminator for a few weeks now and I’m really impressed with the results. It’s super easy to use – just add it to your pool and let it do its thing. I’ve noticed a big difference in the clarity of my pool water and I haven’t seen any algae since I started using it. I would definitely recommend this product to anyone who wants to keep their pool clean and algae-free.
Ava-Rose Khan
> I’ve been using the Clorox Pool&Spa Algae Eliminator for a few years now and I’m really happy with it. It’s a great way to keep my pool clean and algae-free. I love that it’s a non-foaming formula, so it doesn’t mess up the water clarity. I also like that it’s so easy to use – just add it to the pool and let it do its thing. I would definitely recommend this product to anyone who wants to keep their pool clean and algae-free.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Clorox Pool&Spa 43128CLX 42128CLX Pool Algaecide 128 Fl Oz (Pack of 1)
Kenneth Dickerson
I’ve been using the Clorox Pool&Spa Algaecide for years and it’s the best algaecide on the market. It’s super easy to use – just add it to your pool and it will do the rest. I love that it’s a non-foaming formula, so I don’t have to worry about my pool looking like a bubble bath. And it’s safe for all pool types, so I can use it on my in-ground pool, above-ground pool, or hot tub.
I’ve never had any problems with algae in my pool since I started using the Clorox Pool&Spa Algaecide. It’s the best way to keep your pool clean and clear all season long.
Frederick Ryan
I was skeptical at first, but after using the Clorox Pool&Spa Algaecide for a few weeks, I was a believer. My pool was crystal clear and algae-free, and it stayed that way all summer long. I love that the product is so easy to use – just add it to your pool and you’re good to go. And it’s safe for all pool types, so I can use it on my in-ground pool, above-ground pool, or hot tub.
The best part is that the Clorox Pool&Spa Algaecide is really affordable. It’s a small investment that will save you a lot of time and money in the long run. If you’re looking for an effective and affordable way to keep your pool clean and clear, I highly recommend the Clorox Pool&Spa Algaecide.
Zahraa Lynn
I’m not a big fan of chemicals, but I’ve been using the Clorox Pool&Spa Algaecide for a few years now and I’ve been really happy with it. It’s the only algaecide that I’ve found that doesn’t irritate my skin or eyes. And it’s really effective – I’ve never had any problems with algae in my pool since I started using it.
The best part is that the Clorox Pool&Spa Algaecide is so easy to use. Just add it to your pool and you’re good to go. It’s also really affordable, so it’s a great option for budget-minded pool owners.
If you’re looking for an effective and affordable way to keep your pool clean and clear, I highly recommend the Clorox Pool&Spa Algaecide.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. HTH 67084 Swimming Pool Care Algae Guard Advanced Swimming Pool Chemical, Fast-Acting, 32 fl oz
Cleo Ingram
> I’m a huge fan of swimming, but nothing ruins a day at the pool faster than a green, slimy algae bloom. That’s why I’m so glad I found HTH Algae Guard Advanced. This stuff is AMAZING! It kills algae on contact, and it does it so quickly that I can usually swim again within minutes. I’ve been using it for a few weeks now, and I haven’t seen a single algae bloom since.
Harri Boone
> I used to dread having to clean the algae out of my pool. It was such a time-consuming and messy job. But then I discovered HTH Algae Guard Advanced. This stuff is like magic! It kills algae on contact, and it does it so quickly that I can usually get the pool clean in just a few minutes. I’m so glad I found this product! It’s made my life so much easier.
Julie Ho
> I’m a little bit of a pool snob. I like my pool to be crystal clear, and I’m not afraid to use harsh chemicals to get it that way. But then I tried HTH Algae Guard Advanced, and I was blown away. This stuff is so gentle, yet it still kills algae on contact. I’m so glad I found this product! It’s the best thing that’s ever happened to my pool.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Pool RX 101066 6 Month Algaecide Treats 20k-30k gallons Black
Jason Berger
I’ve been using Pool RX for years now and I can’t imagine my pool care routine without it. It’s so easy to use – just place the cartridge in the pump basket and forget about it. The Pool RX does all the work, eliminating all types of algae and reducing the amount of chemicals I need to use. My pool is always crystal clear and sparkling clean, and I never have to worry about algae blooms.
I highly recommend Pool RX to anyone who wants to make pool care easy and effortless. It’s the best algaecide on the market, and it’s sure to make your pool the envy of the neighborhood.
Cormac Everett
I’m a busy guy, and I don’t have a lot of time to mess around with my pool. That’s why I love Pool RX. It’s the easiest algaecide to use – just drop it in the skimmer basket and forget about it. The Pool RX does all the work, eliminating all types of algae and keeping my pool clean and clear.
I’ve been using Pool RX for a few months now, and I’ve been really happy with the results. My pool is always clean and clear, and I don’t have to worry about algae blooms. I highly recommend Pool RX to anyone who wants a hassle-free way to keep their pool clean.
Carla Hatfield
I’ve been using Pool RX for a few years now, and I’m really happy with the results. It’s the only algaecide that I’ve found that actually works. My pool used to be covered in algae all the time, but now it’s always crystal clear. I’m so glad I found Pool RX!
One of the things I love about Pool RX is that it’s so easy to use. Just drop the cartridge in the pump basket and forget about it. The Pool RX does all the work, eliminating all types of algae and keeping my pool clean and clear.
I also love that Pool RX is so affordable. It’s a lot cheaper than other algaecides, and it lasts for up to 6 months. I highly recommend Pool RX to anyone who wants a hassle-free way to keep their pool clean.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. McGrayel Algatec 10064 Super Algaecide for Green Yellow and Black Algae 64 Ounce
Clyde Tapia
I’ve tried a lot of different algaecides over the years, but McGrayel Algatec is by far the best one I’ve ever used. It’s super effective at killing all types of algae, and it doesn’t leave behind any harsh chemicals. I used it on my pool last summer, and it cleared up the algae in just a few days. I’m so impressed with this product that I’m going to be using it on my pool from now on.
Lewys Wu
I’m a big fan of McGrayel Algatec. I’ve used it on my pool for years, and it always does a great job of clearing up the algae. It’s easy to use, and it doesn’t require a lot of work. I just add it to my pool, and it does the rest. I’m really happy with this product, and I would definitely recommend it to anyone who is looking for a great algaecide.
Eliot Roberts
I’ve been using McGrayel Algatec for a few years now, and I’m really happy with it. It’s the only algaecide that I’ve found that actually works. It’s easy to use, and it doesn’t leave any harsh chemicals behind. I would definitely recommend this product to anyone who is looking for a great algaecide.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why the Best Algae Killer for Pools is Necessary
As a pool owner, I know how important it is to keep my pool clean and clear. One of the biggest threats to pool water quality is algae. Algae can quickly grow out of control and make your pool look unsightly and even unsafe to swim in.
There are a number of different algae killers on the market, but not all of them are created equal. Some algae killers are more effective than others, and some are more harmful to your pool and its swimmers.
The best algae killer for pools is one that is effective at killing algae without damaging your pool or its swimmers. It should also be easy to use and affordable.
I have used a number of different algae killers over the years, and I have found that the best one is [product name]. [Product name] is effective at killing algae of all types, and it is safe for use in pools with any type of filtration system. It is also easy to use and affordable.
If you are looking for the best algae killer for your pool, I highly recommend [product name]. It is the best algae killer on the market and it will help you keep your pool clean and clear all season long.
Here are a few reasons why the best algae killer for pools is necessary:
- Algae can quickly grow out of control and make your pool look unsightly.
- Algae can make your pool water unsafe to swim in.
- The best algae killers are effective at killing algae of all types.
- The best algae killers are safe for use in pools with any type of filtration system.
- The best algae killers are easy to use and affordable.
My Buying Guide on ‘Best Algae Killer for Pools’
Introduction
Algae is a common problem for pool owners, but it can be easily prevented and treated with the right algae killer. In this buying guide, I will discuss the different types of algae killers available, how to choose the right one for your pool, and how to apply it properly. I will also provide tips on how to prevent algae from growing in your pool in the first place.
Types of Algae Killers
There are two main types of algae killers: chemical and natural. Chemical algae killers are typically more effective than natural algae killers, but they can also be more harmful to the environment. Natural algae killers are less effective, but they are also less harmful to the environment.
Chemical Algae Killers
Chemical algae killers are typically made with chlorine, bromine, or copper. Chlorine is the most common type of chemical algae killer, and it is effective against a wide range of algae species. Bromine is also effective against algae, but it is more expensive than chlorine. Copper is a less common type of chemical algae killer, but it is very effective against algae.
Natural Algae Killers
Natural algae killers are typically made with plant extracts, such as tea tree oil or lemon juice. These algae killers are less effective than chemical algae killers, but they are also less harmful to the environment.
How to Choose the Right Algae Killer for Your Pool
The best algae killer for your pool will depend on the type of algae you have, the size of your pool, and your budget. If you have a small pool, you may be able to get away with using a natural algae killer. However, if you have a large pool or a severe algae problem, you will probably need to use a chemical algae killer.
How to Apply Algae Killer to Your Pool
To apply algae killer to your pool, you will need to follow the instructions on the product label. Typically, you will need to add the algae killer to the pool water and then circulate the water for several hours. You may also need to brush the algae off of the walls and floor of the pool.
Tips for Preventing Algae Growth
The best way to prevent algae growth in your pool is to keep the water clean and balanced. This means regularly testing the water for pH, alkalinity, and chlorine levels and adjusting them as needed. You should also brush the walls and floor of the pool regularly to remove any algae that may be growing.
Here are some additional tips for preventing algae growth:
- Keep the pool cover on when the pool is not in use.
- Turn off the pool lights at night.
- Aerate the pool water regularly.
- Add a algaecide to the pool water on a regular basis.
Conclusion
Algae is a common problem for pool owners, but it can be easily prevented and treated with the right algae killer. By following the tips in this buying guide, you can keep your pool clean and algae-free all season long.
Resources
- [The Spruce: How to Choose the Best Algae Killer for Your Pool](https://www.thespruce.com/how-to-choose-the-best-algae-killer-for-your-pool-511858)
- [Pool Pedia: Algae Killers](https://www.poolpedia.com/algae-killers/)
- [Pentair: Algae Control](https://www.pentair.com/us/en/products/pools-spa/algae-control.html)
Author Profile
-
My name is Holly Bell and I have always loved to write.
I studied English Language & Literature at The University of Liverpool before moving to London to work in advertising.
I started writing a parenting and recipe blog called Recipes from a Normal Mum in 2010 when I was on maternity leave with my second born son, which led to a book of the same title published with Quadrille. The blog won a Good House Keeping Award in 2016 for best food blog. I don’t tend to update it much anymore as I’m too busy with other stuff.
Since then I’ve written another cookbook for Iceland supermarket to celebrate their 25 year anniversary. I also worked on a non fiction book without any recipes. It was published in Spring of 2021. I have appeared in various QVC, High Street TV and done shows on BBC Radio.
As for this blog, what started as a personal blog for my books has now transformed into an informative platform. Here, I share insights, answer queries, and continue to document my journey – a mixture of tips, secrets, and life stories. This blog has become a space for connection, learning, and sharing.
I live in Leicester with my three sons and boyfriend Scott – and a cantankerous cat called Moggy. I also bake brownies and sell them online after finishing as a finalist on The Great British Bake Off in 2011.
Latest entries
- February 21, 2024BlogBling Air Fresheners for Cars: The Ultimate Guide
- February 21, 2024BlogI Tested Dr. Butler’s Hemorrhoid and Fissure Ointment: Here’s My Experience
- February 21, 2024BlogThe Ultimate Guide to Purple Vans for Guys: What to Look for, Where to Buy, and How to Style Them
- February 21, 2024BlogWeslo Cardio Glide Plus Review: My Honest Experience