Check Failure Modes Simulation The network, designed in Storm and Schedules, is passed for this final stage of hydraulic analysis to Simulation. To test the ultimate capacity of the system it must be surcharged to the point of flooding. In order to achieve this Simulation allows extreme rainfalls to be analysed. Pipes that have been sized for working loads (pipe full conditions) of between 1 and 5 years RP in Storm should be tested for return periods in the range of 20 to 30 years in Simulation. Storage and SC devices can also be dragged and dropped onto the network for a fully integrated analysis.   Click on image for larger view