People try everything to get their grout clean, and inevitably end up on their hands and knees with a wire brush.
There is an easier way — it requires electricity, not elbow grease.
Typically, grouted floors are mopped daily. This process removes dirt from the tile, but spreads it into the grout.
Within months, dirty grout lines are left between the tiles. The grime and dirt buildup left in grout is next to impossible to clean.Dirty grout no match for scrubber
Sources at Minuteman International say a small, compact scrubbing machine can be added to your cleaning routine to eliminate buildup of grime and dirt. For grout that already needs deep cleaning, this type of machine can be a huge labor saver.
To restore dirty grout lines: