DryTec 1-1901-24 24-Pack Calcium Hypochlorite Chlorinating Shock Treatment for Swimming Pools, 1-Pound

Great convenient value! The DryTec calcium hypochlorite dissolves well and helps get the pool water clean, clear, and fresh. The individual 1-pound packages make it easy to measure and use without any mess or guesswork. Having a 24-pack on hand is especially convenient for regular pool maintenance. Overall, a dependable product that makes keeping the pool in great condition much easier.

I did a lot of research before I purchased this DryTec brand of hypochlorite chlorine pool shock. I usually use “In The Swim “brand of chemicals in my pool but when I was on Amazon I came across the DryTec . It got great reviews. I used my perplexity AI search engine and googled it as well. Nice high quality product works well . It’s 68% Calcium Hypochlorite. So it’s nice and strong. It keeps my water crystal clear. It’s very easy to use. I have an in ground gunite pool so I just open the bag and disperse it over the water in my deep end.My pool had 33,000 gallons of water so I use 3 one pound bags per application. I usually use it preventively once every 4 weeks. I don’t understand what a company that makes compressed air equipment has to do with pool chemicals but this company makes a great pool shock. I get the 24 pack size it was $114 last time I ordered it which is a great price. It’s is as good or better than the In The Swim shock I use to use.

I travel frequently, sometimes for extended periods of time, which makes pool maintenance without hiring a service a real pain. This is particularly troublesome with an in-ground pool in Florida in Summer that has no shade. I waited to post a review until after I'd ordered 2 separate batches to test for quality control, and quite simply: this is the BEST shock I've ever used. I've come back from trips to solid green slime pits with heavy stripes of the dreaded black spot algae, and 2-3bags of this stuff + a couple of chlorine tablets with the filter running will turn my pool back to blue overnight. Like other reviewers, I have noticed that my water is a little cloudy the next 24-32hrs--- but in my case, I chalk that up to so much dead organic material & algae that needs to be filtered out. This stuff kills ALL the nasty stuff--- but until it's vacuumed or filtered out, it's still in the water. It works when nothing else does, and does a better & faster job. It's also priced very competitively. If you have a problem pool, or a problem with regular maintenance, this stuff is AMAZING. It terminates even the most durable, hardened, and persistent algae with extreme prejudice, you just have to give your vacuum or filter a chance to clear the battlefield of all the millions of algae corpses once it's finished annihilating them, and then declare unconditional victory. If you're just looking for regular pool maintenance, this may be a little strong for your needs. I will say that when I'm around to take care of it, one bag of this every 2-3 weeks, plus a couple of chlorine tablets does the trick (without cloudiness). Where it really shines though is in rehabilitating seemingly terminally green monsters back into beautiful blue pools.

I really like this pool shock, it is every bit as good as the Leslie's product and half the price. The granules dissolve quickly and the chlorine levels work well in targeting bacterial growth. The only complaint I have is that the bags will melt together, if stored in very high heat areas. I have a large plastic storage bin, that is located in direct sunlight, that I store my pool chemicals in, and the shock bags will melt in the summer months. Not really a huge issue, as I just store the bags in the garage now and they are fine, but I wanted to let others know about this minor issue.

I love this shock! I have used plenty of other brands and nothing I have used seems to work quite as well as Drytec does. In only about 7 to 10 minutes, see the difference between the first two pictures. The next day my pool is totally clear and blue again, amazing! My pool is roughly 33,000 gallons and I used (3) of the 1lb bags.