Using Surf capsules is so easy and quick, with no measuring and no waste. Simply pop a single capsule at the back of the drum in your washing machine, and then place your laundry on top. No more figuring out how much liquid laundry detergent to use! We recommend using one capsule for a standard load (3-5kg) with standard soiling in soft/medium water. For best results, use two washing machine capsules for larger loads (6-8kg), heavy soiling, or hard water.