To assess the Grundfos 26-99 pumps or other equipment should be examined pumping systems and gathered reliable information regarding its operation. The use of incorrect or inaccurate information results in inaccurate results. Pumping systems, tend to have a useful life of 15 to 20 years. Some of the costs occur at the beginning of their operation, others appear at different times of operation. It is therefore necessary to determine the current or present value cost of the life cycle in order to accurately assess the various options.

