PondPACK pond routing method

Question

Hello Bentley, 
 I am designing my ponds in PONDPACK through pondmaker. I found there are no options to select from base calculation options, to know which solver it is using. I guess it is SCS curve number method. 
 Please help me to verify it. 
 Thank you, 
 HD

Sushma Choure · Answer

Hello Hari, 
 Like SewerGEMS, CivilStorm you dont have option in PondPack to switch between multiple solvers, PondPack uses default equations for solving the ponds, channels, network. 
 "The procedure used for estimating runoff volume from precipitation is the Soil Conservation Service (SCS) runoff curve number (CN) method. " 
 Please read about - Computing Runoff, Q in the help documentation.

Jesse Dringoli · Answer

The "solver" usually refers to the numerical methodology used to calculate the network and route flow. As Sushma said, unlike some of our other products, PondPack does not have multiple solvers available. It also handles routing differently depending on the element. For example it can use the Modified Puls routing method for routing flow through Conduits and it can use either "level pool routing" or "Interconnected Pond Modeling (ICPM)" for ponds. You can read more about this in the relevant Help topics. 
 If you're looking to use a specific solver such as EPA-SWMM, you will need to model your ponds in CivilStorm or SewerGEMS, both of which also have the PondMaker tool. PondPack tends to be easier to use though, for smaller and less complex pond systems. 
 The "SCS curve number method" refers to the Loss Method involved with the Runoff method used to calculate catchment runoff based on rainfall/storm information. The SCS Unit Hydrograph Method is one available runoff method (and is based on a hybrid of HEC-1 and TR-20 ), and the SCS curve number is one available loss method, but others are available. The runoff from the catchments then enters the model network and is routed based on the PondPack solver/engine. 
 From within PondMaker, it will use the runoff method and loss method that you have already defined for the catchments in your model, in the scenarios selected in the first step. Meaning, you must already lay out the catchments and define the rainfall and runoff method before designing the pond in PondMaker. If you need to review this, you can look at the properties of your catchments (and also review calculation options like the timestep), then switch back to PondMaker. 
 If this does not help, please explain what you would like to be able to change from within PondMaker.