Hi Rachel, We would advise against using bleach to clean the grout as it only stains the grout and doesn't get rid of the dirt. Bleach, as well baking soda and vinegar, will also break the grout down over time and damage it. A specialist grout cleaner will clean the dirt and help restore the whiteness, without the risk of damaging your grout or the tiles themselves. If it's really bad, removing the grout and re-doing it is the best option, and then be sure to use a grout protector afterwards to ensure it stays clean and bright white in the future. You could also re-do the grout with a darker colour grout, as this is much easier to keep looking fresh.

Hi Lucy, For a toilet floor a darker grey grout would be best to hide any stains or spills. However from your photo the base colour of the tile looks quite beige, so a coloured grout like the BAL Micromax2 in Lime would be a good option, this will keep a heritage look whilst being more practical than an off-white. If you'd like to test a few options, we offer grout sticks in our stores which you can take home and lay next to the tile in the actual light of your bathroom to help you decide and make sure it's a good match before purchasing.

These are the tiles I am referring to.

Do you have a picture Jaime?