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.

Sure, there are days when it takes a few Red Bulls and caffeine pills to pump you up and reinvigorate the acid in your veins.. but the end result is worth it every time. 

Sometimes though there seems to be a correlation because Drano often gets used when there is already a lot of wear-and-tear on the pipes and they are already quite thin.Some clog-removers are acidic and react with copper, but not Drano.

Here is something about using Boric acid.

Plus, our winners will also receive an Aurora Spa Rituals Peppermint Pedi Repair Cream, also valued at $40, infused with peppermint, botanical oils and fruit acids to banish any dry or dead skin while keeping them moisturised at the same time.Soft silky skin is just moments away, so now it's over to you, Primpers.

Chances are the heat exchanger is corroded and plugged up.I read (internet) that muratic acid and water 50/50 mix can clean it.

The key, as with any painting project, is the preparation (which in this case involves using acid, and a little automotive type "Bondo").

Depends on how long it sits with acidic soot, etc.  

This can be removed with an acid used by masons.

Junk yards typically have battery acid leaks, motor oil leaks, gasoline spills and other items relating to electronics.