It’s getting to that time of year again when you think about cleaning sails. Remove dirt and grease from your sails with a mild solution of washing-up liquid. Be gentle with your brushing, and only use a power-washer if it’s gentle. Most important, dry the sail thoroughly before you put it away for the winter. This will stop mould, which loves feasting on the glue used in the seams between panels – especially since some fungicides have been banned from glues.