Normally it is lye and has and and converts grease into 'soap'.
When Drain-O and such doesn't work - the plummer pulls out the big Bomb.

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

I'm not a chemist, but I'm pretty sure most drain cleaners are strong
caustics, not acids

Karl



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