BREAKS DOWN GREASE FAT AND FOOD IN DRAINS GULLYS AND WASTE OUTLET PIPES, FORMULATED TO WORK QUICKLY TO KEEP DRAINS FLOWING, AVOID BLOCKAGES AND PREVENT ODOURS. FOR REGULAR MAINTENANCE POUR 250ML DOWN THE SINK OR DRAIN ONCE OR TWICE A WEEK. FOR A BLOCKAGE POUR UP TO 1LTR SLOWLY INTO DRAIN OR SINK LEAVE FOR 20MINS OR OVERNIGHT THEN FLUSH WITH HOT WATER