distilled water?

[Weeboy1]

Can substitute with mineral water, spring water and osmosis filtered water. Distilled would be best but for the length of stay wouldn’t sweat it. I’ve even used without humidifier with no issue (humidity is pretty high here) the airway maintenance of the machine remains intact. Which is the main factor.
Don’t use auto part supplies.
As said bottled wata will be fine. Just over time may leave scale in 5he reservoir but at least the waters clean.

[brownsd54]

I was just at the gas station across from the Royalton and they have it. It's "Tropical Battery" distilled water that kinda makes you look twice but it is distilled water. I use it for a Neilly rinse, and distilled is the only one that will work. Word of caution. I used my Neilly Rise once last year and could tell right away it was chlorinated water. Turns out some people buy the distilled water, use it, then fill it back up with tap water and return it to the gas station. Just take the cap off and be sure the seal is in-tacked before you buy.