clogged drain?

urinal clogged with salt and hair buildup this stuff is hard as stone what is the best way to dissolve this cal c solve ?

Answers:
drano of any other kind of unclogging liquid found in the cleaning asile.

Other answers:
try coke-cola
try coke-cola
if you have the old pipe plumbing use whaeel acid that works great and if it is pvc take a steel wool brush and scrape it
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