I forgot to add water

[justMongo]

Well, I did it again! I was up late last night lecturing my 39 year old stepson on the merits of getting a job.
Came in and masked up without filling the tank. My nose is really stuffed up this morning.

[2PAPs]

One of my machines is a Respironics Auto M. Running the tank dry caused a little discoloration of the shiny metal plate on the inside. Depending upon insurance coverage, a new tank might not be expensive. It could not be too expensive in any case.

[GingerMan512]

Unless I'm wrong distilled water only keeps your tank from collecting sediment as the water evaporates off. You can use tap water as long as it doesn't smell too bad.