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README.md

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-title: EPANET Simulation Tool (Gradio + EPyT)
+title: EPANET Simulation Tool (Gradio + WNTR)
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-# 💧 EPANET Simulation Tool (Gradio + EPyT)
+# 💧 EPANET Simulation Tool (Gradio + WNTR)
 
-This Hugging Face Space allows you to upload a `.inp` file (EPANET hydraulic model) and simulate it using the [OpenWaterAnalytics/EPyT](https://github.com/OpenWaterAnalytics/EPyT) toolkit.
+This Hugging Face Space allows you to upload a `.inp` file (an EPANET hydraulic model) and simulate it using the [WNTR (Water Network Tool for Resilience)](https://github.com/USEPA/WNTR) library developed by the U.S. EPA.
 
 🧩 **Features**:
-- Upload `.inp` files from EPANET
-- Simulate hydraulic behavior using Python
+- Upload and simulate EPANET `.inp` files
+- Run hydraulic simulations using WNTR’s built-in EPANET simulator
 - View node head results from the first timestep
-- Docker-based: full control over environment
+- Lightweight, Python-only, no EPANET binary required
+- Deployed inside a reproducible Docker container
 
 📦 **Powered by**:
-- [Gradio](https://gradio.app/) for UI
-- [EPyT](https://github.com/OpenWaterAnalytics/EPyT) for simulation
-- Python 3.11 in a Docker container
-
-📍 Compatible with Hugging Face [Chat UI](https://huggingface.co/docs/chat-ui/en/index) and LLM tool use via function calling.
+- [Gradio](https://gradio.app/) – for file upload and result display
+- [WNTR](https://pypi.org/project/wntr/) – for EPANET-compatible simulation
+- [Python](https://www.python.org/) 3.11 + Hugging Face Docker Spaces
 
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-### 🚀 Usage
+### 🚀 How to Use
 
-1. Click the **Upload** button and select your `.inp` file
-2. The app will simulate the network hydraulics
-3. Results (node head values) are shown in the output
+1. Click the **Upload** button to submit your `.inp` file
+2. The app will simulate the hydraulic behavior of the network
+3. You’ll see a summary of node heads (pressure level) at time `0`
 
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 ### 📘 Example Output
 
 
+