After all the tile based discoloration has been successfully removed use a water soaked sponge or mop to get rid of any remaining traces of your solution.
Discoloured ceramic tiles.
How to clean discolored grout.
Someone mentioned they are ceramic and absorb water.
You didn t indicate whether the tile is a glazed ceramic tile or an unglazed ceramic tile or whether either of those types of ceramic tile were porcelain body tiles.
Answer answer there are a number of variables involved in determining what is causing the discolored tiles and it will likely require some intrusive inspections to verify the cause and to determine how to remediate it.
Dirty stained grout can make an otherwise clean tiled area look filthy.
The ctef certified tile installer cti program is the only third party assessment of installer skill and knowledge which is recognized by the tile industry.
Cleaning your ceramic tiles.
I was inspired by the way you referenced installing pictures and did the same for myself.
This is a job you can easily do yourself so give it a go first before you do anything else.
To give your tiles a deep clean take a bucket of hot water and add a couple of drops of mild dish.
Removing the stains without replacing the grout requires some effort but is less intensive.
The ceramic tile education foundation ctef provides education and installer certification for professionals working in the ceramic tile and stone industry.
Step 5 prevent discoloration from reoccuring.