50 nuts and bolts, by hand x many. Whew. One of Jane & Jills many tasks of drilling and redrilling the ice spray plates to produce an efficient spray of water over the ice located in a lined storage tank. The melted ice will be pumped around the motor for cooling during a period of 3 mins of fast action down the salt. Fun times to emulate in the workshop at 28 degrees for a winter temperature in Boliva of 4 degrees