Non-Chlorine Spa Shock for Hot tub - Chlorine Free Tub Treatment & Enhanced to Assist Bromine Suitable Oxidizer Oxidizing by AquaDoc

Good product worked well

Hard to open, but nice not to have to order a bunch of small bottles

Works great, keeps hot tub clean.

Addendum: I wrote a review months after purchasing this product about my frustrations with the inability to open the container. The company reached out to me immediately and issued a refund for my troubles. Excellent customer service! The product worked great, so I’d say it’s worth buying and shooting your shot at getting the lid off. If you struggle with this, reach out to the company and they will make things right.Initial review:I saw the reviews of others saying that the lid does not come off. I figured that had to be a user error and there had to be a way to get it off. Bought the product anyway. Discovered that the reviews are true: there truly is no way to remove the lid. I ended up having to drill a hole in the lid, therefore the next time I went to use it, the product was a solid block that was not usable anymore. The product itself worked well, but terribly designed packaging. Would not recommend it for that reason.

The media could not be loaded. So I love how this product is fast acting and extremely effective at keeping our spas water clean and clear.The Water clarity is awesome! It comes in a great size that last you a while.I find it super easy to use once you get the lid off which is probably the biggest hassle....The product itself once you get past that difficult lid is worth every penny!My spa is cleaner than before and I will continue to use this since it works great!! (At least once you get past that pesky Lid)

non chlorinated shock works much better than chlorine bomb shock, does not smell and achieves the same effect. 1 cup for 10,000 gal is more than sufficient once per week and I don't have to deal with the liquid chlorine. does not irritate the skin like heavy chlorination does.

Good price, works well, easy to use. Canister lid is screwed on tight but unscrews fine once the red tab is pressed up. No need to cut or remove anything to open it.

We purchased this 5lb container and, like many others, found the lid extremely difficult to open without damaging it. Once opened, it never sealed properly again, which made safe storage a concern.We stored the container in a metal outdoor cabinet we’ve used safely for years. Unfortunately, we later experienced a serious incident related to chemical reactivity that caused property damage. A safety inspector explained that some pool chemicals, when spilled or exposed to common materials like cardboard, can become unstable.This experience highlighted risks we hadn’t considered — especially how important it is for the lid to seal securely and for consumers to be aware of potential reactivity.We hope the packaging design has been updated since to allow for safe opening without compromising the seal. Regardless, store with caution and away from anything that could react with the contents.