I've been told to only use vinegar and water on tiles that have been sealed -- the steam heat supposedly removes the grout sealant.
I also heard (don't know 100% if true or not but it makes sense) that sealing the grout no longer voids the warranty. However, this was the case a few years ago.
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Army/embassy brat - traveled too much to mention
Moved here from SF Bay Area (East Bay)
"There are only two ways to live your life: One is as though nothing is a miracle; the other is as though everything is a miracle." Albert Einstein
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