Pool Hydraulics & TDH Simplified
Total Dynamic Head (TDH) is the total resistance your pump must overcome to circulate water through your pool system. Getting this right ensures efficient operation and proper water quality.
What Is TDH?
TDH combines three factors:
- 1Static Head
Vertical height the water must travel
- 2Friction Loss
Resistance from pipes, fittings, and valves
- 3Filter Resistance
Pressure drop through filter and heater
Why TDH Calculations Matter
- Ensures pump is properly sized for your specific system
- Prevents energy waste from oversized pumps
- Avoids poor circulation from undersized equipment
- Required for Florida energy code compliance
- Optimizes equipment life and operating costs