1. Put the suit on a wide hanger and zip it up, then wash its exterior with fresh water and a mild soap. Insert plastic cups or small buckets into the neck and wrist openings to keep water from getting inside the suit. Flush valves and wash seals to remove any body oils. Scrub zipper teeth with a toothbrush.

2. Turn the suit inside out and wipe the liner down with a damp rag to clean any sweat residue. If the suit has attached boots, wash and dry their insides with towels.

3. Let the suit hang like this until dry, and then turn it right-side out to inspect the seals for tears or signs of aging. Look for abrasion, especially on knees and elbows. Obvious scuffing might be a sign of more serious, trouble to come, warranting the addition of protective patches.

4. If you noticed a leak prior to taking off your drysuit, repair it after the suit has thoroughly dried but before you put it away and forget about it. Many leaks can be repaired at home, but follow the manufacturer’s recommendations.

5. An annual overhaul enables you to get the valves serviced by a professional. This would also be the time to replace any questionable seals, service the zipper, and repair any leaks.

6. Store the suit either with the zipper closed or opened all the way. If left partially open, the slider will leave a mark in the zipper track that might not seal the next time you wear it. Some divers store their suits on extra-wide hangers, while others fold them loosely and stow them in a plastic bag to protect from ozone.

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