the "can't turn it off" means that the power-on <> power-off wires have a short, and in ur case, the conducting material is the "soapy" water... which is a very good conductor... my advise is to open up the ipod, and use a soft and lint-free cloth to wipe it... then leave it in an air cond room for one day... flip the mainboard over after say 6 hours... that should be good...