1. Wet grout lines. 2. Fill grout lines with baking soda 3. Spray grout line with mixture of 1part water & 4 parts vinegar & 2 TBsp Dawn 4. Let it sit for 30 seconds 5. Scrub grout lines with old toothbrush and wipe clean
Tried it out this morning on my dogs' high traffic/slobber area, worked well! DIY grout cleaner, 5'x6' area. 1/4 cup bleach & 3/4 cup baking soda to create a nice thick paste.Use an old toothbrush and scub. Let it sit for ten minutes, then wipe clean with a rag and hot water (rinse rag constantly).
I'm going to have to try this. With tile floors throughout the whole house, keeping the grout clean is a challenge. Hopefully you don't have to scrub too hard. http://media-cache-ak2.pinimg.com/originals/c2/d8/bb/c2d8bb60e63203912e15898b6e8478d3.jpg