At400

[kenny kustom]

My wife and I both got new at400 regs.
Mine has been great, but her second time in the pool, water kept entering her mouth when she inhaled.
She would purge and it would come back after a few breaths.
Not sure what to do. Also don't really know what the knobs on the reg do. Lol.

 

[Doug Krause]

Best bet is to have your dealer check it out for you... ask them what the knobs do while you're at it