The caulk in my upstairs shower stall is looking nasty where the tile wall meets the tile floor- I removed most of the old caulk and am now running into grout- it's basically in good shape, just want it to look good and stay that way- question- should I regrout as well as recaulk- any suggestions would be appreciated.
Thanks,

We use tec grout caulk, its all in one, it also have something in it to help with mildew also
If this isn't available you can grout first and then use clear silicone over it

I do have already mixture cement and I want to put tile. How do I do it?

The caulk in my upstairs shower stall is looking nasty where the tile wall meets the tile floor- I removed most of the old caulk and am now running into grout- it's basically in good shape, just want it to look good and stay that way- question- should I regrout as well as recaulk- any suggestions would be appreciated.
Thanks,
Thank you, I'll let you know how it turns out.

Be careful with just using grout. It is NOT an elastic material and you will have leaks. For all of the joints (completely around the shower pan and up the corners as well) use caulk, either silicone or a special mildew-resistant bathroom caulk. Caulk adheres better if it is not placed over the grout. The grout is not smooth, and there can be tiny air pockets between the grout and caulk that will cause the grout to delaminate more quickly.

Someone below mentions Tec. It is technically considered a caulk because it is elastic in nature. Blends well with regular grout too.

Silicone grout is by far the best, most resistant to mildew (won't stick to it), and lasts the longest.