Originally Posted by
FBinNY
You might find it interesting to read post #2 on this thread, where I describe chloride damage to stainless steel.
Also scroll down to the last paragraph of post #9, where I mention an experience identical to that of your client.
I truly appreciate your insight and wisdom, I will check back to them to see if they are storing chlorine in their garage, I do know they have a pool, so it is entirely possible.