I have an older home and thus an older tube. Older tubes tend to look nastier because after the caulk has been on for awhile it starts to get brown or blackish and very very unsightly. I hate scraping and re caulking the edges of the tub with a certain passion. So my question is what can i do to it to make it look more modern ( around the edges) and cleaner looking w/out breaking the bank. But honestly if i have to break the bank i will because its disgusting to look at. Thanks for your time.