I have long used only liquid bleach. I wanted to try these tablets I bought in supermarkets. I do not regret it at all, they are very practical because effervescent, so no risk of spilling bleach or to throw a few drops on clothes at the time to put in a bucket for example washing floors. I also used to flush toilets, with two or three pellets directly into the bowl or in the toilet. This is a handy product, an effective disinfectant and I recommend.