Charcoal Color Grout is White on Shower Floor
New to the site, but already have found some great information.
I just had my bathroom remodeled including the shower. I used sanded charcoal grout on my shower floor with gray flat stones (believe the stones may be some type of marble, but not sure). The floor was sealed with Miracle Sealants Seal and Enhance.
After a few days, the grout has turned light grayish appearing hazy white. See photo.
I tried Aquamix Nanoscrub to try and "remove" the haze color and get it to be the dark charcoal color I want. It worked a little bit, but not very much.
I've been reading that a 50/50 mix of vinegar and water might work, but I'm concerned it would damage the stone. Will it?
Any thoughts/solution suggestions? Your input is greatly appreciated as I really want to fix this. Thank you.