LifeLine Cleaner is the best product we have found for cleaning rescue ropes. This exceptional cleaner concentrate was formulated to thoroughly clean petroleum, animal, and vegetable-based oils, fats, grease and the type of soils encountered in the fire industry. It is biodegradable to US Standards, nontoxic, non-acidic, non-alkali, non-flammable and gentle to the skin. Bleach or fabric softener may be added to LifeLine Cleaner. When used properly, it will not leave grease or residue in your washer. Highly concentrated, it must be diluted – ½ cup is sufficient for a full-size washer.