1. What is a Gravity Fed Water Pressure Calculator?

Definition: This calculator determines the water pressure at the bottom of a column of water due to gravity.

Purpose: It helps engineers, plumbers, and DIYers calculate hydrostatic pressure in water systems, tanks, and pipelines.

2. How Does the Calculator Work?

The calculator uses the hydrostatic pressure formula:

Where:

• \( P \) — Water pressure (Pascals)
• \( \rho \) — Water density (kg/m³, default 1000)
• \( g \) — Gravitational acceleration (m/s², default 9.81)
• \( h \) — Height of water column (meters)

Explanation: The pressure increases linearly with depth due to the weight of the water above.

3. Importance of Water Pressure Calculation

Details: Proper pressure calculation ensures correct system design, pipe strength requirements, and pump specifications.

4. Using the Calculator

Tips: Enter water density (typically 1000 kg/m³), gravity (9.81 m/s² on Earth), and water column height. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What units does this calculator use?
A: The calculator uses metric units (kg/m³, m/s², m) and returns pressure in Pascals (Pa).

Q2: How does temperature affect the calculation?
A: Water density changes slightly with temperature (about 998 kg/m³ at 20°C vs 1000 kg/m³ at 4°C).

Q3: Can I use this for other liquids?
A: Yes, just change the density value to match your liquid (e.g., 13600 kg/m³ for mercury).

Q4: How do I convert Pascals to other units?
A: 1 psi ≈ 6895 Pa, 1 bar = 100,000 Pa, 1 atm ≈ 101,325 Pa.

Q5: Does this account for atmospheric pressure?
A: No, this calculates only the hydrostatic pressure. Total pressure would add atmospheric pressure (101325 Pa at sea level).