To avoid streaks forming on the floor, we recommend cleaning our floor wiper covers in the washing machine before first use. This dissolves any hardness around the fibres and helps the wiper cover absorb water better. Please ensure that you use the correct dosage of cleaning agent and clean appropriately according to the type of floor with cold or hot water, instead of warm water. When cleaning high gloss tiles, despite the notes above regarding streak formations, an appropriate polish is generally required.