white grout turned dark after sealant applied
 

I applied grout sealant to the white grout on my tile floor and it turned the grout dark which I do not like. I need to seal 3 more rooms but am hesitant to do so. Has anyone else had this problem and/or knows of a way to return the grout to its original color?

What did you use? No, never heard of that happening with grout sealer.

Jaz