Always make sure the detachable stainless steel is screwed in all the way before pushing down on the mouthpiece. Check both O-rings at base of mouthpiece to make sure they are not out of place. Pushing down and twisting slightly will help to find the best connection.
If you have any further inquiries, please contact our Customer Service Department anytime Monday through Friday, 8:00am to 5:00pm PST.
Email: help@grencoscience.com
Phone: (800) 948-7480