Grout is porous and allows mold and mildew to grow within the pores. It is also susceptible to water damage. But what causes the grout to turn yellow? It is common for homeowners to find yellow grout in their bathrooms. It makes the tiles look worn out and gives them an overall unpleasant appearance. Read on to find out the primary reasons that cause your grouted tiles to turn yellow. [FURL=https://groutmagnificent.com/4-reasons-grout-turns-yellow/]Click Here For More[/FURL]