On 02/22/2013 03:05 PM, Danny D. wrote:

Having read all this - I wonder if pool accid (muriatic acid,
hydrochloric acid) will work (since I already have lots of that)?

HCl is just going to cause rust. I use muriatic to dissolve
galvanizing (for welding), and all of the ferrous objects near the
bottle end up getting very rusty.

Jon