It is actually fairly easy to learn how to grout. What you need to do first is to mix up your grout compound and make sure that your tiles are all evenly spaced on the floor. If you need to cut your tiles beforehand, please do so, so that you can work smoothly once you get your grout mixed together. Make sure that you don’t have any lumps in your joint compound, and that it is evenly mixed before you start to a apply it. You can use a grout float to make sure that you get the grout in between all the tiles and that the grout joints are completely filled.
After your grout joints are completely filled, wipe off the tile with a wet sponge and allow the floor to cure for the next 48 hours. After the floor is completely dry, then the next thing you want to do is to apply a grout sealer. It is not that difficult to know how to seal grout. The most important thing is that you apply two or three coats of grout sealer and that you do not get it on the tile. You can use a bottle brush or roller applicator to apply the grout sealer to the joints. You want to make sure that it stays very wet for at least 10 minutes. A lot of times the grout will look slightly different with the sealer on it than it did before. Most grout sealers are transparent. This way you can ensure that the sealer has penetrated into the top of the grout and will help to protect it against water and dirt. Your tile and grout should stay clean for quite a while, but next time it starts getting dirty on a regular basis, you may want to think about using a grout sealer again and re-sealing it.