How to Use the Calculator

This calculator helps you solve pipe and cistern problems by calculating the time it takes to fill or empty a tank using multiple pipes.

Steps:

1. Enter the total capacity of the tank in liters
2. Specify the initial water level in the tank
3. Add or remove pipes as needed
4. For each pipe, enter:
   • Flow rate (liters per hour)
   • Whether the pipe is filling or emptying the tank
5. Click "Calculate" to get your result