Since H2So4 does a nice job - I use professional plummer drain cleaner -
strong solution of H2So4.

Might be that the brand of black strap is containing sulfur - common.
Most state de-sulfurized.

I bet the de version wouldn't work.

Martin

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Life; NRA LOH & Endowment Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/


Karl Townsend wrote:
http://www.wr6wr.com/newSite/article...06/wp0906.html

That's a sweet solution, VBG



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