2-Oxiclean
I prepared a small quantity of Oxiclean in a plastic cup, maintaining a 1-to-1 ratio to form a runny paste. Using an old spoon, I applied this mixture to the grout, ensuring constant stirring to prevent the Oxiclean from separating from the water and hardening. After letting it rest for 5-10 minutes, I scrubbed it with a Scotch-Brite pad. This method was quite effective, but the Oxiclean did leave a white residue on the floor, necessitating immediate rinsing with water and thorough mopping afterward.
3-Sulfamic Acid Cleaner
I mixed the sulfamic acid cleaner with warm water, following the instructions on the container. I spooned this mixture onto the grout, and it instantly started fizzing and bubbling up. After scrubbing it with a Scotch-Brite pad, the grout appeared darker initially, which caused some momentary alarm. However, as it dried, the grout looked lighter and cleaner than before, leading me to believe that the initial darkening was due to wetness.
2-Oxiclean
I prepared a small quantity of Oxiclean in a plastic cup, maintaining a 1-to-1 ratio to form a runny paste. Using an old spoon, I applied this mixture to the grout, ensuring constant stirring to prevent the Oxiclean from separating from the water and hardening. After letting it rest for 5-10 minutes, I scrubbed it with a Scotch-Brite pad. This method was quite effective, but the Oxiclean did leave a white residue on the floor, necessitating immediate rinsing with water and thorough mopping afterward.
3-Sulfamic Acid Cleaner
I mixed the sulfamic acid cleaner with warm water, following the instructions on the container. I spooned this mixture onto the grout, and it instantly started fizzing and bubbling up. After scrubbing it with a Scotch-Brite pad, the grout appeared darker initially, which caused some momentary alarm. However, as it dried, the grout looked lighter and cleaner than before, leading me to believe that the initial darkening was due to wetness.
