The Pool Pro’s Guide to Pump Sizing Smarter

Choosing a variable speed pump shouldn’t feel like a guessing game. We walk through a simple, field-tested way to size the right unit by matching your current single-speed horsepower to modern total horsepower (THP), accounting for plumbing size, distance, and voltage, and then using RPM control to hit your flow goals without wasting energy. No fluff—just practical rules you can apply the moment you step onto the equipment pad. We start by translating old-school horsepower labels into today’...