I don't think you should drink from galvanized water pipes, even if they're being filtered. How certain can you be that the filter is successfully extracting metals? And even if it is, how certain can you be that it's extracting ALL the metals?

I also think, if you haven't started already, you should consider taking sodium alginate regularly. Not only do you need to get rid of the metals built up in you currently, you need to make sure no more new metals are being added.

That's just my two cents <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />