Ratings & Reviews for HTH 16-oz Cal Hypo Pool Shock

The Best

[This review was collected as part of a promotion.] The HTH Pool Care Shock Ultra is awesome. It comes in individually wrapped packages for convenient storage and no mess. It's easy to use and has my pool looking crystal clear. I used to pay a pool company for weekly maintenance but now I just do it myself using this HTH Shock Ultra as part of the weekly routine. My pool looks crystal clear and levels are always where they should be. The shock works so well even after long vacations away or bad ...

Excellent!

[This review was collected as part of a promotion.] I did a lot of research on this product before buying. As I have a salt water pump for my above ground pool. I was extremely happy when I found out that this product could be used safely with my salt water set up. It worked amazingly well and my pool is cleaner than ever!

Works great!

[This review was collected as part of a promotion.] This shock treatment works wonders on getting a pool in working order! The package was easy to open, no ripping and spilling insides everywhere. The product started to work almost immediately when adding to pool.

Always great

[This review was collected as part of a promotion.] Constantly use this brand for pool maintenance and they always deliver. It truly makes opening the pool for summer so much easier and no need to hire a company to do it for us. Products are easy enough to use. Definitely recommend

Works great

[This review was collected as part of a promotion.] The HTH ultimate pool shock powder is something I have to use a lot living in North Carolina it gets so extremely hot here so muggy that if you go more than a week without getting a good cleaner scrub on your pool you actually need to shock it back to life again so if you have those same issues I would recommend the HTH pool shocking powder

HTH for perfect disinfection

[This review was collected as part of a promotion.] I like to shock our pool during the midsummer months. HTH is a trusted name and have used their products for many years. Since we have owned pools! The shock not only provides the necessary disinfection, it also made the water super clear! I like the convenience of the individual bags per treatment. Very happy with this product! You can’t go wrong with HTH!

Cleaned my pool right up!

[This review was collected as part of a promotion.] I have to admit I have a really hard time keeping all of my levels good in our pool, I didn't do enough research on pools but this has made it so much easier! The water was clean but was dealing with some cloudiness and the water just wasn't sparkling. 24 hours after using this shock, the cloudiness had gone and the water was nice. Chlorine levels have stayed consistently in range and no algae! I'm using this shock about every 5 days. The only ...

Works Well

[This review was collected as part of a promotion.] I've used this a couple times and it does a great job of spiking the chlorine level and shocking the pool. The pre-measured bags make it convenient to add the right amount for whatever size pool you have. The small granules dissolve quickly and completely.

Keeps Pool Crystal Clear

[This review was collected as part of a promotion.] HTH Pool Care Shock is a must-have for an excellent looking pool all summer long. The shock is super easy to use. Once per week I add one of the included pre-portioned packages in the deep end of the pool at night with the filter running, and then I use the pool brush to make sure that none settles on the bottom. The shock is gentle with our pool liner and has never discolored it in any way. Pool water by the morning is crystal clear and gorgeo...

Perfect timing

[This review was collected as part of a promotion.] We got this just after returning from vacation. The kids didn't keep up on pool treatments while we were gone. So got this and it was heaven sent! It was simple to use instructions were easy to follow

Works wonders

[This review was collected as part of a promotion.] We use a lot of hth pool products. They are our preferred brand. We have never had an issue with their products. We can't live without this pool shock. It neutralizes the chlorine and helps keep the pool in perfect looking condition making you wanna hop right in. Comes in very convenient 1 lb packs. Dissolves nicely.

Great quality chemicals

[This review was collected as part of a promotion.] This is the only brand of chemicals we have used in our pool since we've had it for the past 7 years. I put it in once a week and it has always kept my pool water clean and clear. When you put it in most dissolves at once, a small amount floats back to the top but eventually it will all dissolve.

HTH is good stuff

[This review was collected as part of a promotion.] This stuff worked great for my above ground pool. Been having some issued with getting my pool to get clear and clean. Used this shock and within just a few hrs of running my pool pump this had made a huge difference. I will keep this on hand to keep my pool clear. Really good stuff

Works so well!

[This review was collected as part of a promotion.] I have a large pool that is sometimes hard to maintain. The HTH Shock helps me keep my pool blue and clean all summer long. It's easy to use and within hours my pool looks perfect again. This is a brand I trust!

A must have!

[This review was collected as part of a promotion.] We absolutely have to have shock at all times! I usually shock our pool about once a week. We live in an area where there many trees so our pool gets dirty pretty quickly. I paid this shock with clarifier and a pool vacuum and it gets back to new in no time at all!

Great Product

[This review was collected as part of a promotion.] I love how after having a large group over for a pool party that we used this product before to make sure our pool would be ready for the increased number. It was easy to use and help put our minds at ease knowing we had done all we needed to make sure we were ready.

Easy to use containers

[This review was collected as part of a promotion.] So often shock comes in this bully container and it’s hard to measure let alone pour in my pool. These easy to hold and pour 1lb containers make taking care of my pool easy and less physically straining. I am really glad I came across these. They will be my go to moving forward.

Great

[This review was collected as part of a promotion.] We wanted to go swim for the last few weeks left for winter and I wanted to try a new shock treatment for the pool. I tried this one out and it turned my pool from green to clear In a couple of hours. Now we can enjoy the last couple of swims before we enter the fall

Great stuff

[This review was collected as part of a promotion.] Pour this in in the afternoon let the filter running and next day in the morning my pool was looking amazing!!! Highly recommend this. Depending on the size of your pool look into how many packs you need.

No cyanuric acid, big plus for me.

[This review was collected as part of a promotion.] Longer use of most chlorine products will cause the development of cyanuric acid, which is a problem for a lot of reasons. I really enjoy the benefits of this shock, as it clears and maintains the water beautifully in our above ground pool, but also does so without adding any or creating any acid byproduct. This is the game changer for me, to have a clean pool but also one that is healthy and remains so to swim in!