Tile and Grout Sealing Demands a Clear Look at Grout Health

https://brightgroutliving.novacrestiq.com/posts/tile-and-grout-sealing-demands-a-clear-look-at-grout-health

Before you seal your tile and grout, you really need to get a good look at the grout's condition. Cracks, crumbling, or even just dark, damp spots can all point to moisture trapped underneath. If you seal over damaged grout, you lock in problems that will only get worse over time. Take a close look first; your tile will thank you later.