Big inn and spa. Five years ago new maintenance man shuts down cooling tower for the winter and freezes the coil. We replace coil. $30,000 job. Poor maintenance no water treatment. Water leak underground for a year that they don't address. Water make up running full open to keep loop charged. Get called this week. Coil leaking (rust hole). You can see the picture. (The picture is looking down into the tower with the decking removed showing the coil). The galvanized tubes are all corroded all ready.
Any ideas why? I did set them up with a good water treatment guy that has been on them to repair the leaks from the last year so he could treat the loop. He is stumped as of right now and looking into what the corrosion is from.
Time for a new tower....thank God winter is coming.