... valve F2, F4, the equipment begin work. 7-2CleaningCleaning membrane pipe after untra-filtration, first, take out the filter, element, Put ... per operation of starting machine, in order to clean membrane pipe inside, We can wash it positive and opposite direction, wash in ... all valves, in order to keep enough water in membrane pipe for maintainence. 8) Attention8-1 The temperature of the electrophoresis ...