"RedForeman ©®" wrote in message
...
|| Hi,
||
|| Any ideas on the best way to clean a second hand tank? I have
|| aquired one, and found that because the previous owner kept it only
|| half full, the bottom half of the tank is quite clean, but the top
|| half has this white film-like substance on it.
||
|| I have tried using water and a razor blade, doesn't seem to lift.
|| What would be safe to use on it to rid this stuff?
||
|| Des.

Soap, water, elbow grease.... Scouring pad, if it's glass, and vinegar,
sometimes CLR can be effective... others will have more ideas too....

If a razor blade or stanley knife blade isn't shifting it then it must be
thick, or your glass is badly etched.

A 10 to 1 dilution of hydrochloric acid, as above elbow grease, and some
gloves, don't splash it everywhere, but just make sure your cloth is damp
with the solution, not dripping and it should wipe off. Then rinse very very
very thoroughly.

Sounds drastic, but my first 'real' tank was second hand, and the water
round here without treating, is about as hard as it can get, hence I had a
similar problem.

cheers

A