I pre-washed my Hydrogen Water Stick as suggested, but it is now floating in my water bottle.
from Dave
Dear Dave,
You need to understand that these sticks produce Hydrogen, which is a gas. If you look closely you will see the Hydrogen Water Sticks are covered in a microporous material.
When you first used the Hydrogen Water Sticks, the patented unique microporous sintered polypropylene cover was somewhat dry, thereby trapping bubbles in the microporous material. This will cause the sticks to float.
As the sticks become more saturated with water, the hydrogen gas bubbles are released and the sticks sink to the bottom. From time to time, the Hydrogen Water Sticks might float again; this is nothing to be concerned about.
Floating or sinking the Hydrogen Water Stick is working. You can't stop them from working once they are activated.
This Hydrogen Water Stick will also bubble more at times than others. It will never bubble like an alkselzer tablet. The reaction is much more subtle.