The specialists at HG have HG duo unblocker developed specially for the most stubborn blockages caused by grease and food scraps (keukenafvoer) or hair, toothpaste, soap scum or skin oils (sanitairafvoer). A plumber has you now really don't need more! HG duo unblocker is based on a unique 2-component-technology that allows you to easily create the different types of persistent blockages targeted and effective remedy. Both products are ready to use and do not need to be diluted, so there is less chance of splatter.
Pour (depending on a blockage in your kitchen - or sanitairafvoer, please read carefully the user's manual) caution 1 or 2 parts (see units of measure on the bottle) of the bottle A in the clogged drain. Afterwards, pour (carefully, depending on a blockage in your kitchen - or sanitairafvoer,) 1 or 2 parts (see units of measure on the bottle) of the bottle B in the clogged drain and leave it to rest for 1 hour. Rinse with a copious amount of water and then pour out the remaining liquid from bottle A and then the remainder of the bottle B in the drain to an optimal persistence to obtain. Leave this for 1 hour and then rinse it out after with a large amount of water.