Ratings & Reviews for HTH 32-oz Pool Algae Prevention

Black algae

Works well with black algae.

It works!

I loved the product, it killed the algae and it settled in clumps were it would allow me to vacuum it easily.

Pool Chemicals

[This review was collected as part of a promotion.] My Sister-in-law needed someone to close her pool for her so my wife and I went to her house for the weekend to close it for her. The pool was pretty green, but with a heavy dose of (HTH pool care algae guard Ultra) the next morning the pool was clear enough to close. So we continued to winterize it. I would recommend this HTH algae guard Ultra to anyone who has a pool.

Very Satisfied

[This review was collected as part of a promotion.] I got my Pool Care about a month ago, I'm very satisfied with the results and how well it works, I don't have a big pool but it's decent and it cleans it out very well pretty easy to use no odor, and I have a clean pool.

Works Great!

[This review was collected as part of a promotion.] We have a swimming that had some visible algae. We tried so many things to get rid of it with no luck. We tried this HTH Algae Guard Ultra and what a difference it made! We added 16 ounces of this to our pool. It is recommended for 16 ounces per 10,000 gallons of pool water every 3 months. The bottle is a 32 ounce bottle so we will get two uses out of it. We noticed very quickly that the algae was less and less. We kept our pump going while add...

Works well

[This review was collected as part of a promotion.] I live in an area with high humidity and periods of no rain and then days of rain, especially this summer. This algae guard works very well to quickly get rid of the algae that we've had happen and I feel it has helped prevent the occurrence of heavy algae problems. It does foam a little, nothing major, and I use just a small but of de-foamer and it goes away. I really like that we can use this and swim immediately. Very clear directions and me...

This works!

[This review was collected as part of a promotion.] Our saltwater pool has had a wonderful Summer! After a bought of heat and a low chlorine level, I noted an algae was present. I’m so happy to have found this product- knocked it right out after following the initial treatment instructions and then keeping up with the ongoing maintenance- super easy! The product doesn’t foam which is a big plus for a beautiful clear pool with the crystal clear clarity as all strive for. Simple to use…. Dosage: ...

Didn't work for me

[This review was collected as part of a promotion.] We have a hot tub that has turned to the green side. I added the required amount and ran the hot tub but the next day I saw no difference. I'm not the best at taking care of the spa. All these chemicals intimidate me. I'm not sure what I did wrong. The color of the chemical is strange. It's an electric blue.

Works for 3 months and is so easy to use!

[This review was collected as part of a promotion.] I have a 10,000 gallon pool and this 16oz product treats up to 10,000 gallons, so that’s perfect. I put the product In my pool according to instructions in different spots and left the pump running for a few hours. I have a green and yellow type algae in my pool, and this product went to work immediately. I love the fact that this product continuously controls algae for 3 months! Really helpful product and worth the price.

Excellent product

[This review was collected as part of a promotion.] This HTH Algae Guard is excellent! I know sometimes you can feel hopeless when your pool turns green and cloudy and you can feel super discouraged and like it will be a lot of work. The algae guard is so amazing that it literally starts working instantly. It starts fighting the algae immediately and you can see it start to work. It only takes a few hours before the pool is crystal clear and it stays that way for a while before you have to treat...

The Best

[This review was collected as part of a promotion.] The high temperatures and heavy rain in Georgia makes my pool water very dingy. After using the test strips l used the HTH POOL CARE ALGAE GUARD ULTRA to help balance my water parameters. It worked well, the pool was restored to a good sanitizied level. The product workedquickly, had no fowl odor and the instructions were easy to follow. I will continue to use this product as a preventative algaecide.

HTH® Pool Care Algae Guard Ultra, 1qt

[This review was collected as part of a promotion.] I am impressed with this HTH Pool Care Algae Guard Ultra. HTH® Pool Care Algae Guard Ultra, helps to keep your pool clear. By following directions exactly, algae will clear in 24 hours. This works very well as preventative algae maintenance!!!! I love that you don't have to wait hours and days for it to work while not being able to swim. You can swim within 15 minutes. Thank you for the free full size product in exchange for my honest review ...

No more green!

works like a dream

[This review was collected as part of a promotion.] This algae gard is just what we needed for our pool. We had a little problem at the beginning of the summer keeping our pool Chrystal clear and the ph levels right. We got this, tried it in our pool that was turning slightly green and it disapated the cloudy green making it clear again. I'd definitely recommend this to others. It worked great.

Quality product

[This review was collected as part of a promotion.] So the HTH algae guard is definitely making a difference in the cleanliness of my pool. I use HTH shock first then the next day I add the algae guard and the sides and bottom of the pool clean up quickly.

Works well - just follow directions closely

[This review was collected as part of a promotion.] So I was on vacation and my pump quit working during a storm. So of course I had algae and my pool was green once we returned. I used HTH to get rid of the algae and along with the salt pump (salt water pool) and shock - I was able to get my pool back to swim able shape within 3 days - which is awesome. I have used HTH products but never before the long acting algae killer - so I'm hoping for some relief longterm! One week so far and it is stil...

No algae, does the job.

[This review was collected as part of a promotion.] We've been having exceptionally warm weather, and this has caused a new algae growth problem for us. This has helped address it, as it was new to us, and it has kept the algae gremlins at bay. I appreciate the swim immediately aspects to the product, as I worry it is too harsh to come into contact with. It has not created any skin or other concerns, and has been wonderful to have the algae under control. I'll continue to use it throug...

Works like it should

[This review was collected as part of a promotion.] This is a great product. Well worth the money it only takes a few ounces per 10,000 gallons. This is one of the best algaecides I have ever used. It works great as a preventative and to clear up algae that is already growing.