EE DISCOVERED OLD SULFURIC ACID LINE ENTANGLE ON THE FLOAT PADDLE SHAFT. EE CUT LINE FREE FROM SHAFT NOT KNOWING THE LINE WAS AN OLD SULFURIC ACID LINE. WHEN THE PIPE WAS CUT, TENSION ON THE L INE CAUSED THE PIPE TO STRIKE THE EE'S FACE & SPLASHED ACID ON THE RIGHT SIDE OF HIS FACE AND INTO RIGHT EYE. EE DID HAVE SAFETY EQUIPMENT IN USE AT TIME OF INCIDENT AND USE PROPER SAFETY PRO