cmburch
Contributor
Good information on mask clearing. It can be practiced in a swimming pool and even the bath tub to get a good feeling of the technique. I remember my little brother sitting in the tub with his mask and snorkel on, fill his mask then sit up and practice clearing it. He did some other strange things such as snorkeling with a cat in the neighbor's kiddie pool. A couple of nights in the tub may help. My brother had a purge on his USD mask though.