[b][i]Hi everyone I'm not sure if I'm posting in the right category, so please shove me to the correct one if needed, please. I have been working to put my house on the market. And it may be just my vision, but in the master bath, the double sink and quite large vaity seems to be turning a yellowish color. Oh, I'll repeat that it is cultured marble. We built the house in 1988 and moved in Jan. 1,1989. I need to add here, that we also had a jacuzzi tub. It was originally built with the same tiles as our shower, and was not originally supposed to be a jacuzzi. I asked the builder if he could change it to include the jacuzzi makins', and he said no problem. Later we found he had never installed a jacuzzi tub, and apparently there was a problem with the pan leaking into the walls. After a few attempts to fix it, he admitted defeat and had a cultured marble one installed. So, it's possible that after 30 years, the vanity really is turning yellow. But the jacuzzi is still looking more white with gray streaks, where the vanity looks like a wanna be jacuzzi color. My hope is that someone here will know something about cultured marble dis-coloring, and how to clean and/or refinish it. I didn't want to use too many cleaners on it, plus I am limited by a septic system as to what I can use safely. I also understand that the builder may have used a lower quality material and could be why there seems to be such a difference in the two items. OK. That is my problem. I hope I gave enough information for one or twenty of you to save me with a solution. Preferably a low cost since I do plan to sell in the next six months max. Thank you all. Any suggestions are much appreciated! [/i][/b]

I have a Sterling double threshold corner shower, circa 2004. The door glass is retained in the aluminum frames with a U-shaped, clear vinyl gasket. The gasket has turned brown at the bottom of the doors. Are there any suggestions for restoring this? I replaced the gaskets once in 2012, but the new ones started turning brown withing the first year, as had the original ones.