When needed, wash the rope using warm, soapy water and a soft-bristled brush; a mild liquid detergent or laundry soap works well. Spread your hammock or chair on a deck or concrete surface and soak it thoroughly with a garden hose, then pour on some soapy water and gently scrub. Try not to disturb the weave pattern while cleaning. Rinse everything thoroughly then allow to dry, preferably in direct sunlight.