Pump / Force Main System in InfoSWMM and SWMM 5 - with Emojis

Subject: 🚀 Pump / Force Main System in InfoSWMM and SWMM 5

Introduction: 💡 The Pump/Force Main system in InfoSWMM and SWMM 5 is a critical component for effective wastewater management. It ensures that wastewater flows smoothly from its source to the desired destination. Let's explore its components and the steps to set it up!

📌 The Basic System:

• Wet Well with its parameters 🕳️
• Pump Type 🔄
• Defined Pump Curve 📈
• Downstream Pressure Node 📍
• Downstream Force Main 🛤️

Figure 1:  The Basic System

Step 1: Wet Well Data 📋

• Input the invert elevation and maximum depth of the Wet Well.
• Define the shape, considering evaporation or infiltration factors.

Step 2: Define the Pump Type 🔄

• The pump's operation is guided by its Pump Curve and the set On and Off elevations.
• The four primary pump types include:
  • Volume - Flow 🌊
  • Depth – Flow 📏
  • Head – Flow 📌
  • Depth - Flow 📊

Step 3: Define the Pump Curve 📈

• Under the Operation Tab, outline the desired pump curve to ensure efficient pump functioning.

Step 3:  Define the Pump Curve in the Operation Tab 

Step 4: Set a Surcharge or Pressure Depth 🌡️

• By setting a positive Surcharge Depth at the Downstream node, you ensure that during the simulation, the node remains pressurized, driving the flow through the Force Main.

• This plot offers a visual representation of the hydraulic gradient line (HGL) for the Force Main System, showcasing the pressure changes within the system.

• Define the downstream conduits emerging from the pump as Force Mains.
• Choose either the Hazen Williams or Darcy-Weisbach coefficient based on your requirements. (This is typically set in SWMM 5 options or InfoSWMM's Run Manager.)

Step 5: Force Main Data 🛤️

Step 6: HGL Plot of the Force Main System 📊

  

Step 7: Pump Summary 📑

• Refer to the RPT File to get a comprehensive summary of the pump's performance and other related parameters.

Conclusion: 🌟 Setting up the Pump/Force Main system in InfoSWMM and SWMM 5 is a meticulous process but ensures efficient and effective wastewater management. Following these steps will ensure a robust system in place! 🚀🌊🛠️

Pump / Force Main System in InfoSWMM and SWMM 5

Subject: Pump / Force Main System in InfoSWMM and SWMM 5
The basic system consists of:
· Wet Well and its associated physical parameters,
· Pump Type
· Defined Pump Curve,
· Downstream Pressure Node and
· Downstream Force Main
Figure 1: The Basic System

Step 1: Wet Well Data
Enter the invert elevation, maximum depth of the Wet Well, the physical shape as either a function or shape table and any evaporation or infiltration.

Step 2: Define the Pump Type
The pump type is defined by a Pump Curve and the On and Off elevations:
The four types of pumps are:
· Volume - Flow
· Depth – Flow
· Head – Flow
· Depth - Flow

Step 3: Define the Pump Curve in the Operation Tab

Step 4: Set a Surcharge or Pressure Depth at the Downstream end of the Pump
Any positive Surcharge Depth in the Node will allow the program during the simulation to keep the node under pressure forcing flow through the Force Main.

Step 5: Force Main Data
Define the downstream pipe(s) from the pump as Force Main conduits with either a Hazen Williams or Darcy-Weisbach coefficient (defined in the SWMM 5 options or the Run Manager of InfoSWMM)


Step 6: HGL Plot of the Force Main System

Step 7: Pump Summary in the RPT File