First things pour about 1/2 a cup of bicarbonate down the sinks. Then about 1/4 cup white vinegar. Leave for 30 mins then boil the kettle and pour down the drain. I pour boiling hot water from the kettle down the drains about once a month. Keeps the drains clear. Only do bicarbonate and vinegar if there is a blockage or it's smelly.

Ohhhh THANKS HEAPS Rouge!!

off to do that right now