To clean the drum, remove smells and kill bacteria add two cups of Soda Crystals to the detergent dispenser on an empty cycle and run on the longest hottest wash.
Once the cycle is complete, add 500ml of White Vinegar to the drum, and run another empty cycle on the longest hottest wash. This will eliminate any limescale and detergent from the pipes, leaving your washing machine sparkling and working more efficiently. This should be repeated every 4 - 8 weeks to ensure unpleasant odours and bacteria do not accumulate.