I will now tell you the most unusual water problem we ever had in out computer room. The drop ceiling above out Printronix and Versatec line printers collapsed on them. It dumped water and grunge all over the printers. The hammers on the Printronix rusted and we had to replace them. You ask how the water got in the ceiling well here is the story. Our computer center was on the 10th floor of an 11 story office building in the Northwest Plaza shopping center in Saint Louis. For Christmas the shopping center managers decided to install a very large Santa Claus on the roof, flown in by helicopter in 2 sections and assembled on the roof. The Santa was to be held up by a metal frame bolted to the roof. The installation crew drilled holes in the roof, missed the beam and punched right through the roof. They just shoved a little gravel over the incorrect hole and drilled a new one. The next melting snow and rain filled up the roof and drained through the hole into one of the unoccupied 11th floor offices above our computer room and then leaked down through the floor into the drop ceiling. The wet ceiling was too heavy and crashed down onto the printers. BTW After Christmas the Santa was lain down on the roof and covered by a tarp. You could see the tips of the boots under the tarp all year. Mike