Drain Buster Granules will remove stubborn deposits like fats and organic compounds from drains and grease traps. The strong exothermic reaction melts away all fat and grease blockages resulting in clean trouble-free drains. Drain Buster Granules has been formulated for use in the catering- and fast food industries, abattoirs, and normal households.DIRECTIONSHeavy Blockage: Add 500g - 1kg Drain Buster Granules to the blocked drain. Maintenance Cleaning: Add one (1) cup of Drain Buster Granules to the drain. Add two (2) cups of water and allow 30 to 50min for Drain Buster Granules to react. Extreme heat will be generated during the reaction. Flush the drain with hot water to allow the blockage to be cleared. Repeat if necessary. NB: DO NOT STAND OVER OR CLOSE TO THE DRAIN OR SEAL THE DRAIN OFF. KEEP AREA AROUND DRAIN CLEAR FOR ONE (1) HOUR AFTER ADDITION OF DRAIN COMPOUND. KEEP OUT OF REACH OF CHILDREN.