Helping across the full stormwater spectrum: SWMM (50+ yrs), InfoSWMM/ESRI (20 yrs), InfoWorks ICM (15 yrs), & Autodesk AEC Collection (5 yrs) Grandpa (10 yrs)
December 6, 2025
This is an app that I always wanted to make … Read the rest
In this blog we example the St Venant terms used in SWMM5 as equations, table, graphs and units. We use a QA/QC version of SWMM 5 that lists many more link, node, system and Subcatchment variables than the default SWMM 5 GUI and engine. This also applies to #InfoSWMM
The key problem discussed here is to keep the Force Mains full or d/D equal to 1 when the pumps turn on
The key problem discussed here is to keep the Force Mains full or d/D equal to 1 when the pumps turn on, it is sometimes difficult to get … Read the rest
Setting Controls For The Pump and Orifice
Using H2OMap SWMM , you may control the operational status of pumps and flow regulating structures by specifying their initial status, using the simple control rule, or using the RTC rule functionality. You will utilize all these three features to set the operational … Read the rest
A Visual Look at a series of Hazen Williams friction loss HW Force Mains in #InfoSWMM and #SWMM5. All of these graphs were made in the advanced graphical tools of InfoSWMM.
The figures show the progress of the water downstream along with comments on individual terms. Here is the list … Read the rest
Example Pump Controls in InfoSewer and H2OMap Sewer
Five ways to control the pump by controls in InfoSewerH20Map Sewer. Here are a few examples and important features of the various InfoSewer Pump Controls. A pump in InfoSewerH20Map Sewer uses a Newton-Raphson iteration process for 50 iterations or until the successive … Read the rest
InfoSewerH20Map Sewer recognizes two different types of Controls. They are as follows:
· Initial Status - Initial status prescribes the initial setting for a pump InfoSewerH20Map Sewer Project. This control on the element may be over written by the Simple … Read the rest
Steady-state analysis and design of storm sewers is usually accomplished under worst (i.e., peak) runoff conditions to test transporting capacity of the network without causing major flooding or overflows. The Rational method is the most widely used technique for estimation of peak flow … Read the rest
In the past few years, advances in infrastructure management technology have been occurring at an accelerated pace. This technology is now being realized within the context of sanitary and storm sewer modeling. It has allowed sewer collection system modeling … Read the rest
Pumps in InfoSewer and H20Map Sewer
A pump is a link that imparts energy to a fluid thereby raising its hydraulic head. Pumps are needed in a gravity sewer system to prevent deep excavations, and are designed to lift the fluid to a desired level that produces gravity flow condition … Read the rest
InfoSewerH20Map Sewer provides unparalleled network analysis and simulation capabilities for performing a wide range of essential modeling tasks. WithInfoSewerH20Map Sewer, the entire sewer collection system or any selected sub-system may be analyzed under steady state and extended period simulations. Please note the stormwater … Read the rest
Exporting To Sanitary Sewer Conveyance System Models for InfoSewer
InfoSewerH20Map Sewer /Pro can write the contents of a network model created in InfoSewerH20Map Sewer Pro to standard GIS formats (e.g., Shapefiles) for use in other applications.
This will prove useful for sharing your modeling efforts with your organization via enterprise … Read the rest
Manholes in InfoSewer and H2OMap Sewer
Manholes are points in the network where links join together and where loads enter the network. They are also placed at locations where pipe characteristics change (e.g., diameter and slope). The basic input data required for manholes is:
Rules for 
Routing in InfoSewer and H2OMap Sewer
1. Loading Manholes can take unlimited flow
2. Gravity Mains will take all of the flow from the Loading Manholes, but
3. d/D will be 1 and q/Q or q over Qfull will be much greater than 1
4. A Wet Well … Read the rest
InfoSewer, H20Map Sewer EPS Mass Balance
The Extended Period (EPS) simulation has a Mass Balance at the bottom of the Text Output Report
Design in H2OMAP Sewer and InfoSewer
STEADY STATE DESIGN
A sanitary sewer collection system has basically two main functions: to convey the designed peak discharge and to transport solids so that deposits are kept to a minimum. It is imperative, therefore, that the sanitary sewer has adequate capacity for the … Read the rest
Steps to Import data into InfoSewer Using GIS Gateway
Here are the steps from the beginning for importing data into InfoSewer:
| Make a new InfoSewer Model and add in the layers you want to import |
| Initialize the InfoSewer Arc Map to the Coordinates of the Layers you have added |
| Look |
Innovyze InfoSewer vs InfoSWMM and H2OMap SWMM vs H2OMap Sewer
A short comparison of the features in infoSWMM and infoSewer. Many of the same rows apply to H2OMap SWMM and H2OMap Sewer.
| Feature Class | Feature | InfoSewer | InfoSWMM |
| Base Functionality | Conservative Solution as an option |  |
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| Public domain engine |  |
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| Calibrate model to |
There are two ways data can be imported into . The first is to import data as a background map to InfoSewerH20Map Sewer while the second is to import data that will become an InfoSewerH20Map Sewer element (pipe, pump, manhole, wet well).
Click … Read the rest
H2OMAP Sewer’s Compare Scenario command allows the user to monitor the differences between any two scenarios in a model.
To compare two scenarios, from the Scenario menu, select Compare Scenarios. The following dialog box will be displayed:
Scenario #1 - The … Read the rest
