All vinegar sold for household consumption can be used.

Sure, but while the pH will not change, the hydrogen and ORP values maybe change after a while.

You can, but we recommend discarding water left in the bottle for longer than one day.

While you don't have to clean your bottle after every use, we do recommend cleaning your i-water bottle at least once a week.

When you open your bottle for the first time, please be sure to rinse the inside of the bottle 2-3 times with clean water.

When you're not using your bottle for a long time, it's best to remove the filter and make sure it's dry before you store it.

The stones in the filter of your bottle will naturally turn dark over time. This is normal and harmless to your health, but it does indicate that you should clean the bottle to maintain good pH levels.

1.) Put 4 tablespoons of vinegar into the bottle and enough water so that the filter is submerged. 2.) Close the lid and shake the bottle more than 5 times, then open the lid and leave it for 2 minutes or until the stones are shiny. ***YOU MUST LEAVE THE CAP OPEN DURING CLEANING, IF YOU DON'T THE INTERNAL PRESSURE CAN DAMAGE THE LID*** 3.) When the color of the stones is shiny again, throw out the water and rinse the bottle 2-3 times with clean water.

You can use any water that meets government drinking water quality standards.

The bottle material is Tritan which can be safely used between temperatures of -40 to 221 degrees Farenheit ( -40 to 105 degrees Celcius.)

This is for housing tea leaves, you can brew tea by putting loose tea leaves or a tea bag in this space.

Please do not put your i-water bottle in the microwave.

The alkaline levels are maintained for around 10 hours, after this time frame we recommend refilling the bottle.

If you drink around 2 liters of water per day, you should replace the filter after around 1 year. Another way to know is when the stones have disintegrated to half the amount.

Most tap water has a pH of around 7.0-7.2, and when you fill your i-water bottle with water it starts to form a value of more than 8.5 after about 1 minute.

If the ORP of the water put in the bottle is between +300mV to +500mV, the ORP level will be -100mV to -600mV after 10-15 minutes.

If the water put into the bottle is 100ppb of hydrogen, it will be up to 1500 ppb after about 5 minutes.

You can check the pH by using pH drops or a well calibrated pH meter. We don't recommend using pH strips as these are generally for saliva, urine or swimming pools and can't measure drinking water effectively.

ORP is the oxidation reduction potential, which is a measure of the antioxidant levels of a substance.