"They learned the hard way that you simply don't reverse the pumps lest you get the Golden Bear [mineral oil] equivalent of water hammer". Ouch. It must have b

"They learned the hard way that you simply don't reverse the pumps lest you get the Golden Bear [mineral oil] equivalent of water hammer". Ouch. It must have been 'fun' finding that out. Another example of extreme water hammer: http://www.davros.org/misc/ambridge.html http://www.davros.org/misc/ambridge.html