Pump Impeller Diameter vs Horsepower (\( \frac{D1^5}{D2^5} = \frac{Hp1}{Hp2} \)):

Where:

• \( D1 \) is the initial pump diameter, in inches.
• \( D2 \) is the final pump diameter, in inches.
• \( Hp1 \) is the initial pump power, in horsepower (hp).
• \( Hp2 \) is the final pump power, in horsepower (hp).