Since then, it has been in an outdoor tank filled with a solution of water and sodium carbonate and treated with an electric current to kill barnacles and other marine life that clung to the propeller, remove salt and seawater residue and extract harmful minerals.
(it; has been; in an outdoor tank; T:Since then) (an outdoor tank; filled; with a solution of water and sodium carbonate) (other marine life; clung; to the propeller)
it an outdoor tank other marine life
has been filled clung
in an outdoor tank T:Since then
with a solution of water and sodium carbonate
to the propeller