On 2013-04-08, Roanin wrote:

I had the same problem with staining and deposits. I bought some Polident
Denture Cleaner fizzies. Put about 4 of them in the toilet at a time a few
times and they are almost gone now. Only cost about $3 for 40 Tablets. Give
it a try, pretty cheep test.

I will!

Mom, in her forgetfulness, has bought boxes of those things. I jes
dropped in a bunch of 'em. Thanks, Roanin.

nb