Grout sealer is used to protect the grout from water and stains. It also makes tile easier to clean. It is easy to apply and should not be ignored.
Where to Buy
Grout sealer can be purchased at any hardware store or home improvement center.
How to Apply
Apply grout sealer with a small craft brush. It will be easier to the sealer exactly along the grout lines.
If the sealer drips while you are applying it, clean up immediately so that the runs won't show on your tile. Allow the sealer to dry according to the manufacturer's instructions before using the shower.