Hello.
Long time away the forum. I hope every body is fine.

Well... we have a galvanizing pot with several leakage of molten zinc throuhg the welds.  Infortunately, the pot was made in ASTM A36 (wich is an incorrect material selection because, as you know, has carbon and silicon levels improper for such application) and the owners wants to repair it in order to put the galvanizing plant in full operation as quick as possible.  I read in the Linnert´s welding metallurgy book that is a normal practice (still today) use a bare metal electrode of low carbon content to obtain a weld metal with low silicon that avoids (or retard) the dissolution in molten zinc. 
If everyone has experience or aknowledge aobut this subject, I need some help or information (references, internet links) related with this welding technique.
Another thing: Linnert says thah more recently has been used GMAW with a low carbon low silicon steel electrode.  ¿somebody knows this kind of filler metal (reference, class, especification, etc.)?

Thanks in advance for any help.

JORGE GIRALDO
Medellín, Colombia