Filling and Circulating The Cofferdam

After successfully completing this lesson, you should understand the special circumstances that require a cofferdam to be filled and be familiar with the procedures involved in filling and circulating the cofferdam. To gain maximum benefit from this lesson you should successfully have completed the previous lesson. This lesson discusses the special circumstances that require the cofferdam to be filled with liquid in order to prevent damage to the pump, including listing the cargoes involved. It then explains the techniques involved in filling and circulating the cofferdam.