What is heavier then water, or sand that is low cost?
I am building a machine that needs a heavy column of water, or sand, or ???
I am using the WEIGHT to perform a specific chore.
The heaviest weight is what I do not know: Wet water, so far is the best I can find.
IS THERE ANOTHER OPTION? LEAD IS TOO COSTLY.
Thanks for any answer / help you can provide.
MARVIN SILVERSTEIN email@example.com
Chardon Ohio 44024