Bob,
They are doing very well. I look at them every day.
There are pop rivets in the two pieces and, as of last night, seem uneffected.
The froth started the almost as soon as I put them in.
By what you are saying, over time the acid in the solution must get stronger. Also, in the process, the acid must get used up. Therefore, the mixture must go off with time and use. Any idea how long it will last?
As a consequence of this experiment, my laundry smells nice.

