vinegar and polished porcelain

[lyndaz]

OK, i've been over at the liberry and couldn't get the answer....

I need to remove grout haze (former thread) from my Crossville polished porcelain tile (unsealed). I would like to try using 50/50 vinegar/water before I purchase something more acidic. Will this harm my tile? I'm not worried about the grout - it's coming out and getting re-grouted anyhow.

Thanks for your help guys!

Lynda

[Davestone]

They recommend sulfamic acid crystals, but yes you can use vinegar, and if you rinse well,it should be fine,even a little ammonia in the final rinse water will help.