Wanting to sell our house soon so doing all the jobs that i never got around to.
Now the bathroom, tiles are nice but the grouting has become discoloured over the years with the water from the shower.

I'm guessing just scrape out the old stuff and apply new grout and wipe off excess with a damp spunge, sounds easy but i have a feeling it may be a mission.

Is there anything else i need to know before i start???

Thanks