Floor tile grout lines need to be cleaned properly before applying floor tile grout. So, with the correct tool in hand, here's the best way to clean grout lines without damaging your floor tiles before spreading.
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So what you do is take your chisel or whatever tool you choose and you would just scrape away. Once again, be very gentle with it, it should come out relatively easy. So you notice I kind of have a flat on the edge, I’m not on angle so much, I’m more up and down trying to dig it in to get it so I’m not hitting in to the tile so it will pop. So that’s all there is to it and once you have it deep enough, as long as it's at least halfway down the tile. I always talk about a quarter inch, that’s kind of aggressive, at least halfway down the tile is your minimum, don’t change on that. If you can get right down to the bottom of the tile the better. There is another over here that had to do and I’ll show you how to do, how to use that with this tool, here the—here you will just get it in there, scrape that and just dig it right through. I don’t know if you can see that—right here, there is the idea and there it is. Nice and clean and ready to grow. Now we’d have to go over and clean our whole surface because you don’t want to just start putting the grout down because now you have all of these mortar dust and mortar pieces everywhere and as you put your grout down it will mix in and you’ll see it sticking up it will look awful. So we’re going to get to that next. So now we’re going to sweep all of the grout lines and you want to get your broom and get in deep down into it and you want to dig out all that dirt. So what I will do is I will anything that’s up high and push it down and then forward and bring it up and over the top, either way works fine because what you’re going to end up doing, once you finished sweeping over the whole area, so you sweep the whole thing, you might want to come in to the middle, if it's very dirty you want to bring everything together, chances are they will fall in to the grout lines, don’t worry about that, because now what you’re going to do is take your vacuum cleaner and if you have an attachment for this that works too because just using this by itself works fine and you just go along and then suck out all the grout lines and that will pull everything up. Simple as that, then you want to come back after that and get your bucket, your sponge. So this here is actually grout sponge. So fill your bucket with water and you want to wipe the whole floor down. Actually you want to make the floor wet. One is to help clean it and the other is the grout just works not only better with the floor, just have a little bit of water on, it doesn’t work as well when it’s dry. Then you’re ready to grout. So we’ll show you that.

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