SewerGEM - How do i stop a pump from operating if the receiving pond reaches a level in the model.

Hello Boon,

Pump controls in the Implicit and Explicit solvers are limited to the elevation of of the wet well. More complex controls are available with the GVF-Convex (SewerCAD) solver, though this would likely not be well-suited for what you are currently modeling. 

Regards,

Scott

Hello Boon,

One of my colleagues made a suggestion that might work. You may be able to use SWMM Controls Sets to set up a control. You can find information on SWMM Control Sets at the following link: Using SWMM Control Sets in SewerGEMS and CivilStorm.

Ponds are not one of the items you can use in a SWMM Control Set, but if you can find base the pump status on a node depth or hydraulic grade, this might be a suitable workaround. 

Regards,

Scott

THanks Scott,

I have created a control set as per the example. however there issn't an option in the pump attritbute table to select for the control set *Unlike the Conduit control window).

do you have a clear example that would help me to assign the pump to the set-up control set?

Regarfds,

Boona

Hello Boon, 

The SWMM Control Sets are not created in the pump properties, like the simple controls based on wet-well elevation. The link I provided earlier has the general steps to creating these and how they are applied. There are a few examples in the link, including one that use node depth (see item "Pump station operation (as in a SWMM4 Type5 pump)" in the Examples section). 

SWMM Control Sets are only used with the Explicit solver, which you are already using in the example you sent us.

Regards,

Scott Kampa

Bentley Technical Support

Thanks Scott,

I have managed to get it to works however it seems that with i am using "and", "or" on the condition and action, the software would not compute as it says "invalid" ......

Regards,

Boon