The tub guy gave us a little bit of a hard time since all the acid would run down into the basement (no drain hooked up)— we created a makeshift funnel for the acid to funnel into a container so we could get the job done right.

The low porosity granite is more durable against acids and stains.

If the fires took place more than a week ago and they were not taken care of properly, you can expect a large bill.Basically, the soot from smoke is acidic and will permanently discolor walls, carpet, ceilings, appliances, etc..

They had something acidic in the tub and it ate away the glaze.

Some makeup or cleansers do have acid in them and it can bleach out any colored towels. so we stock are bathrooms with makeup wipes. 

The pee is so acidic (and liquid) that it can seep into the joists or slab and there is no amount of neutralizer that will get it out.

Its been kicking my *** without AC.

Or it could have been boric acid.