Thanks - I can do that, I will try something a little tougher like the rough side of a sponge and see if that does anything.
Also, I don't know if it would affect anything but I have extremely hard water here in FL.
First let me say thanks to all of the folks on this site. I'm a new brewer (4 months/4 brews) and have yet to post any questions because I have always been able to find my exact question asked and answered every time something has come up.
I now have a question that I can't find an answer to...