---
title: Benchmark of Result between Water Reticulation module in MiTS and EPA Net
description: "The water reticulation project can now be exported to EPA Net format. However, several conditions must be met for the results to match: 1. The Fire Flow Supply Level should be calculated using the Highest Supply Level (HSL). When exporting…"
url: "https://mes100.com/docs/benchmark-of-result-between-water-reticulation-module-in-mits-and-epa-net/"
updated: "2026-10-12"
category: Benchmark / Water
---

# Benchmark of Result between Water Reticulation module in MiTS and EPA Net

The water reticulation project can now be exported to EPA Net format. However, several conditions must be met for the results to match:

1. The Fire Flow Supply Level should be calculated using the Highest Supply Level (HSL). When exporting to EPA Net, the node elevation data in EPA Net will be based on this setting, whether Ground Level (GL) or HSL from MiTS. Take note that peak and average flow used HSL data for their calculation, so if the Fire Flow Supply Level is GL, then the residual pressure might differ a bit between MiTS and EPA Net for nodes with tank water level, since HSL = GL + Tank water level. You might refer to this [**blog post**](https://mes100.com/docs/water-reticulation-benchmark/) for more information regarding MiTS calculation in water reticulation.
   - *Options > Project Settings > Water Ret > Design > Fire Flow > Fire Flow Supply Level == GL/HSL*
2. Compared with MiTS, EPA Net did not have the Sluice Valve and Non-return Valve, so make sure the valve used in MiTS did not contain this type of valve if you want to compare both software results.
3. Verify that both software have similar default values for analysis; Flow Units, Headloss Formula

## **Checking Default Values for Water Reticulation and EPA Net**

How to check/adjust the value used in each software? You may refer to the following table.

| **Default Setting** | **Water Reticulation** | **EPA Net** |
| --- | --- | --- |
| **Flow Unit =** LPS | Options > Project Settings > Water Ret > Input > Water Demand Units | Ribbon Tab > Project > Analysis Options… > Flow Units |
| **Headloss Formula =** Hazen-Williams/Darcy-Weisbach | Options > Project Settings > Water Ret > Design > Headloss Formula | Ribbon Tab > Project > Analysis Options… > Headloss Formula |

## **Example**

| Project File: | **[ Using Hazen-Williams](https://largefilehosting.s3.ap-northeast-1.amazonaws.com/ProjectSharing/Client%20Project%20-%20Saiful/MiTS%203%20vs%20EPANet%20-%20HWC.zip)** |
| --- | --- |
|   | **[ Using Darcy-Weisbach](https://largefilehosting.s3.ap-northeast-1.amazonaws.com/ProjectSharing/Client%20Project%20-%20Saiful/MiTS%203%20vs%20EPANet%20-%20DWC.zip)** |

This example project file has both MiTS and EPA Net’s projects. The project file contains a pump curve, pressure breaking valve (PBV) and tank water level.

The terms used in MiTS and EPA Net are different. Below are the terms used in both software.

| **MiTS** | **EPA Net** |
| --- | --- |
| Pipe | Link/Pipe |
| Node | Node/Junction |
| HWC/DWC | Roughness |
| Highest Supply Level | Elevation |
| Flow | Demand |
| HGL | Head |
| Residual Pressure | Pressure |

### **Design**

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-e79ad7b3f8.png?w=1080&ssl=1)

***MiTS: Water Reticulation***

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-5b9a4c8d6a.png?w=1080&ssl=1)

***EPA Net***

### **Formula: Hazen-Williams**

#### **Average Flow**

| **Pipe for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-b5a2178c3f.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-6ede62ec24.png?w=1080&ssl=1) |
| **EPA Net** |

| **Node for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-9c6803b2a2.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-a4c7cf8427.png?w=1080&ssl=1) |
| **EPA Net** |

#### **Peak Flow**

| **Pipe for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-52469f4eb8.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-07b4ebbaf9.png?w=1080&ssl=1) |
| **EPA Net** |

| **Node for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-3de35cc1ea.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-c985293fbd.png?w=1080&ssl=1) |
| **EPA Net** |

#### **Fire Flow**

| **Pipe for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-9644043d99.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-16c8c8c06d.png?w=1080&ssl=1) |
| **EPA Net** |

| **Node for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-22ad81c35b.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-d06c0d7e3a.png?w=1080&ssl=1) |
| **EPA Net** |

### **Formula: Darcy-Weisbach**

#### **Average Flow**

| **Pipe for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-b1a4b6e668.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-3b56f60633.png?w=1080&ssl=1) |
| **EPA Net** |

| **Node for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-070826598e.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-476b4f23ee.png?w=1080&ssl=1) |
| **EPA Net** |

#### **Peak Flow**

| **Pipe for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-092b73fafc.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-b0a153219c.png?w=1080&ssl=1) |
| **EPA Net** |

| **Node for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-25382370de.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-9a11b0d07e.png?w=1080&ssl=1) |
| **EPA Net** |

#### **Fire Flow**

| **Pipe for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-af477fb252.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-d56b401525.png?w=1080&ssl=1) |
| **EPA Net** |

| **Node for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-eba9fa12b0.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-47e448c2eb.png?w=1080&ssl=1) |
| **EPA Net** |

### **Formula: Chezy-Manning**

#### **Average Flow**

| **Pipe for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-8d33c54695.png?w=1080&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-a5ca4a72cb.png?w=1080&ssl=1) |
| **EPA Net** |

| **Node for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-f942440969.png?resize=624%2C455&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-8b0529dcc2.png?resize=560%2C547&ssl=1) |
| **EPA Net** |

#### **Peak Flow**

| **Pipe for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-eef1be015d.png?resize=624%2C527&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-c24a13a26c.png?resize=624%2C533&ssl=1) |
| **EPA Net** |

| **Node for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-921bfa5cd8.png?resize=624%2C520&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-4e583f6c79.png?resize=585%2C542&ssl=1) |
| **EPA Net** |

#### **Fire Flow**

| **Pipe for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-ff6a8b66a2.png?resize=624%2C529&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-d16d91a303.png?resize=624%2C536&ssl=1) |
| **EPA Net** |

| **Node for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-763ee8d7dd.png?resize=624%2C449&ssl=1) |
| **MiTS: Water Reticulation** |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-cc4ce13691.png?resize=590%2C541&ssl=1) |
| **EPA Net** |

### **Hazen-Williams vs Darcy-Weisbach vs Chezy-Manning**

A slight difference between the result of headloss and residual pressure is due to the formula used in the calculation of headloss.

#### **Average Flow**

| **Pipe for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-939d65c2ce.png?w=1080&ssl=1) |

| **Node for Average Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-166c9c847d.png?w=1080&ssl=1) |

#### **Peak Flow**

| **Pipe for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-cb7802555f.png?resize=1059%2C484&ssl=1) |

| **Node for Peak Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-48c9a63311.png?resize=1039%2C475&ssl=1) |

#### **Fire Flow**

| **Pipe for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-3d0eb2c308.png?resize=1069%2C488&ssl=1) |

| **Node for Fire Flow** |
| --- |
| ![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-a93299a29a.png?resize=1080%2C491&ssl=1) |

## **Findings**

The comparison between EPA Net and MiTS shows similarity in the residual pressure of the node while the comparison of headloss in a few pipes has a difference of 0.001 m/km. The list of the pipes with this difference is shown in the table below.

| **HWC** | **Pipe No** | **Headloss (m/km)** |  |
| --- | --- | --- | --- |
| **EPA Net** | **MiTS** |  |  |
| Average Flow | 16 | 0.027 | 0.026 |
| 16 | 0.017 | 0.018 |  |
| Peak Flow | 17 | 0.027 | 0.026 |
|   |   |   |   |
| **DWC** |   |   |   |
| Average Flow | 4 | 1.944 | 1.943 |
| 15 | 0.087 | 0.086 |  |
|   |   |   |   |
| **CMC** |   |   |   |
| Average Flow | 4 | 2.313 | 2.314 |
| Fire Flow | 9 | 7.404 | 7.403 |

While the data between EPA Net and MiTS is similar, when the term of comparison is between the headloss formula (Hazen-Williams vs Darcy-Weisbach), the difference of value can be seen significantly for both node’s residual pressure and pipe’s headloss. This difference in value is due to the different formulas used for the calculation of the headloss;

Hazen-Williams headloss formula,

$$H\:=\frac{10.67LQ^{1.852}}{C^{1.852}d^{4.871}}$$

Darcy-Weisbach headloss formula,

$$H\:=\:\frac{fLV^2}{2dg}$$

Chezy-Manning headloss formula,

$$H\:=\frac{10.293\cdot \:n^2\cdot \:L\cdot \:Q^2}{d^{5.33}}$$

Here is a simple project file created in EPA Net 2.2 showing the different results when using different headloss formulas, **[HWC vs DWC vs CMC](https://largefilehosting.s3.ap-northeast-1.amazonaws.com/ProjectSharing/Client%20Project%20-%20Saiful/Head%20Loss%20Calculation.zip)**

Here is the **[EPA Net 2.2](https://github.com/USEPA/EPANET2.2/releases/download/2.2.0/epanet2.2_setup.exe)** Installer for you to try on your own

A **[Google spreadsheet](https://docs.google.com/spreadsheets/d/11ntu4TCzsRi0Nuf5v9pwvy-fth-8zMJLr8lLf7Hb0KA/edit?usp=sharing)** is used to compare the headloss for each formula

## **Conclusion**

In conclusion, the results obtained from both software are similar. Though there are a few pipes with a difference of 0.001 m/km headloss, it can be said that MiTS’s Water Reticulation module and EPA Net produce a similar result.

This provides us with confidence that our Water Reticulation module’s analysis is accurate.

### *Related*

 [![](https://i0.wp.com/mes100.com/wp-content/uploads/2024/10/me-small.jpg?resize=100%2C100&ssl=1)](https://mes100.com/author/admin/)[Ngu Soon Hui](https://mes100.com/author/admin/)

I’m the [Benevolent Dictator for Life](https://en.wikipedia.org/wiki/Benevolent_dictator_for_life) for MiTS Software cum Editor of this website. Read more [here](/about-ngu-soon-hui/).

You can also contact me at soonhui@mes100.com