After callouts for another suspected night adder (caller's didn't phone back to give me an address), a suspected black mamba....and we found a night adder at this property but couldn't get it....we got another call out for this one hanging out on a tray raft in a reservoir. He had been there a few days apparently. He was a bit aggro when I tried to get him out. He went for a swim which tired him eventually and then I was able to convince him the tube was a good choice. He has since been released in a safer area near where he was found.