Rinse your wetsuit in cold, fresh water after each use. Hot water destroys the flexibility over time. You should never wash your wetsuit in the washing machine and make sure to get rid of a all sand and salt.
Now and then it is important to rinse with a neoprene shampoo to get rid of the bacteria building up in your gear. Bacteria will turn into a smelly fungus which is bad for the suit, you and your new hanger.
Hang to dry in a dry and ventilated environment. Do not expose to sunlight. Hang your wetsuit inside out by the waist on you Coldwater hanger. This will help to maintain the shape and flexibility and extend overall lifespan. Never iron or put your suit in the dryer.