What kind of water does Dr.wellness oxyhydrogen machine need to add? How much should be added each time? Do I need to clean the water tank? Do I need to change the water?

The most important is add the right water.

It need TDS=0 distilled water or purified water.(Remarke: TDS=Total Dissolved Solids:

TDS represents the total amount of all dissolved solids in water，The less TDS, the purer the water.)

with less impurities, pure water, the better for the machine, the longer the machine life.

In USA, we recommend Nestle and Great Value distilled water. In Asia, we recommend Watsons distilled water， C'estbon and Wahaha purified water.

If these brands are not available, choose distilled water or purified water from a well-known local brand. with less impurities, pure water, the better for the machine, the longer the machine life.

Don’t use a distilled water machine to make distilled water at home. Such distilled water will not meet the standards and will shorten the life of the machine.

As long as your water meets the standards, there is no need to clean it and there are few after-sales problems.

The water tank is full of 4L, so the first time you add water is about 4L, and the machine will automatically stop adding water when it is full.

It consumes 130 to 150ml of pure water or distilled water per hour. If it consumes 1.5 liters（about 10 hours）, it will prompt that it is short of water and needs to add water to start. After the first time you add water, it prompts that it is short of water, and you only need to add 1.5L each time.

If you use it for a few hours every day, you don't need to change the water or clean it.

If you don't use it for more than 14 days, drain the original water and add new water.