Conc. 25  is a bubble solution concentrate. It is packaged in either a 900g PET container*. It is not for general consumer use. To have bubbling fun, users have to make sure to dilute and mix the product with water (tap water) well in a certain ratio to make the bubble solution, first. The dilution ration between the concentrate and water is  1:25. 

1) How to dilute Conc. 25  900g

First, pour 1 liter of water into a clean, empty container of about 30 liter capacity and input all Conc. 25  900g into it. Input all the remaining concentrate inside the PET container into the container by rinsing out the PET container with the rest of water required ( 21.5 liters ) a few times. Then, mix the concentrate with water using a mixer for about 10 minutes to make a homogeneous solution. 

In the case of 1:25 dilution  : Conc. 25  900g + water 22.5 liter ( 1+21.5)