Tube Well Discharge Calculator: Calculate Water Output & Irrigation Time

Introduction

With the rising cost of diesel and electricity in Pakistan, every minute your tube well runs costs you money. Many farmers guess how much water their pump is throwing, but “guessing” often leads to over-watering or under-watering.

Knowing your exact Discharge or Water Flow Rate is essential for Precision Agriculture. It helps you decide:

1. How much diesel is required for 1 acre?
2. How long should the tube well run to apply 3 inches (Rauni) or 4 inches of water?
3. Is your pump performing efficiently or does it need repair?

We have created this simple Tube Well Discharge Calculator for Pakistani farmers. It uses the standard “Volumetric Method” (Drum Method) which is the easiest way to measure water discharge in the field.

How to Use This Tool (The Drum Method)

You do not need expensive meters. Just follow these steps:

1. Get a Container: Use a standard blue chemical drum / Neela Drum (usually 200 Liters) or any container with a known volume.
2. Time the Flow: Place the pipe over the drum and use a stopwatch (mobile phone) to see exactly how many seconds it takes to fill the drum completely.
3. Enter Data: Put the volume (Liters) and Time (Seconds) into the Tube Well Discharge Calculator above.

Understanding Your Results

• Flow Rate (Liters/Sec): This tells you the speed of your water. A higher number means your pump is efficient.
• Time to Irrigate 1 Acre:
  • 3 Inch Depth: This is usually enough for “Rauni” or light irrigation.
  • 4 Inch Depth: This is standard for crops like Sugarcane or heavy Wheat irrigation.

Note: These calculations assume the water reaches the field efficiently. If you have unlined watercourses (Khaal), add 10-15% extra time for seepage losses.

Why Use FasalBachao Tools?

At FasalBachao.com, we believe in using technology to increase income. By knowing your exact irrigation time, you can schedule your shifts better and stop the tube well exactly when the crop has enough water, saving you thousands of rupees in fuel costs per season.

4. How the Tube Well Discharge Calculator Works

Behind the scenes of the tool, here is the logic:

• Discharge (Q): Volume / Time.
• 1 Acre-Inch: The volume of water required to cover 1 acre with 1 inch of water is approximately 102,790 Liters.
• Formula: (102,790 x Target Inches) / (Liters per Minute) = Minutes required.

Also Calculate Plants per acre or plants per hectare here

The tool was made with help of AI Studio