The effectiveness of the Hydrogen Water Stick to generate hydrogen rich water will deteriorate over prolonged use. This is the natural process.
For best results, clean your Hydrogen Water Stick monthly.
About once a month, the Hydrogen Water Stick should be cleaned in vinegar as shown in the diagram. 
-
Submerse the entire Hydrogen Water Stick in the vinegar water mixture
(one part vinegar to four parts water).
- Allow the Hydrogen Water Stick to soak for about 30 minutes and then confirm the existence of bubbles (hydrogen gas).
- Then remove the Hydrogen Water Stick, thoroughly wash with running water and reuse.
The life of the Hydrogen Water Stick will vary depending on frequency of use, proper cleaning, care, water source and other conditions.
Use common table vinegars (grain, rice) to clean your Hydrogen Water Stick.
Notes:
- Do not use Distilled Water or Reverse Osmosis Water to make Hydrogen Rich Water.
- These sources of water have very little mineral content and will not produce the best results.
- Use "clear" type vinegar and do not use vinegar with the "mother" in it.
- Use only water when making Hydrogen Rich Water, (juices, milk, coffee and other drinks will ruin your stick)
