Satisfied with the product. Anyone who wants to engage in the "sport," besides chlorine-algaecide, should know that covering the pool with an opaque cloth when it is not in use will greatly help the water quality, so that the light does not hit the water.

Very good, I have been using it for a while and it's worth the money. The only problem was with the shipping, they left it wherever they wanted instead of taking it to its destination as the order stated. Bad shipping

I used it for 2 months in a surface round pool and the water was free from greenness and algae while also giving it clarity. I did not notice any skin problem from its use (according to the instructions). The quantity is more than enough and with weekly use of 85-90 ml, it did not exceed one liter.