[JadeD]

I have never mixed the vinegar with the baking soda, not sure what (if anything) would happen. When you are using the same ingredients used in a science fair volcano, I am leery.

I wash them as needed. My puppies go outside as much as I can so sometimes I need to wash them every few days and sometimes it doesn't need it for a week. It all depends on how soiled they are. Because I keep a disposable pad on them they don't get a lot on them. The one in the bedroom sometimes goes a month without needing washing because he only goes at night about 2 nights a month or less.

I just do it as needed though and some weeks they are washed twice, some weeks not at all.