BioGuardBioGuard Smart Shock 1 lb, Pack of 12, Algae Preventative, Swimming Pool Clarifier, Pool Shock Treatment, Multi-Purpose Shock for Pool Maintenance

Keeps pool clear

Use this weekly on my pool. It’s pricy but the better stuff does a better job!

Keeps my pool clear!

Used to have all kinds of algae problems in my in ground pool. Pool guy suggested bio shock and I have never had a algae problem since. Great for algae removal and prevention and overall keeps my pool looking crisp and clean. Expensive but worth it. Great quality and easily to use. Dissolves quickly with nothing left on the bottom. The best option that I have used.

We will always use this product as long as we have our pool! It does everything it’s supposed to…Keeps the water clean, clear and sparkly!

I’m really impressed with the BioGuard Smart Shock! I had some algae starting to take over my pool, and after just one treatment, the water started clearing up within a few hours. By the next day, it looked crystal clear again. It’s super easy to use, and I love that it’s a multi-purpose shock—it not only tackled the algae, but also acted as a clarifier and left the water looking clean and sparkling. Having the 6-pack is also really convenient for regular maintenance.Highly recommend if you need something that works fast and keeps your pool in top shape!

Great brand, keeps pool looking pristine! Easy to use, dissolves quickly and just as cheap as at the pool store.

My Intellichlor chlorine generator went out and almost over night I lost all chlorine levels in my pool and had green wall algae starting. I replaced the Intelichlor devices, added 2 bags of this produce and ran the filter overnight. The next moring the chlorine level was perfect, algae was deminished and water was clear. It also did not have the strong chlorine smell you sometimes get with shock. Good product.