How It Works

This calculator determines the recommended pipe diameter based on flow rate, pressure, pipe length, and material. Results are estimates and may vary based on specific circumstances and local conditions.

Pipe Sizing Tips

• • Most residential systems use 3/4" or 1" PVC for main lines
• • Zone lines may use 1/2" or 3/4" pipe depending on flow
• • Always check manufacturer charts for maximum flow per pipe size
• • Keep pressure loss under 10% of starting pressure