Variable-speed pool pumps vs single-speed pool pumps: Variable-speed pays for itself in energy savings within a year or two

Variable-speed pumps use 60-80% less electricity by running slower for routine filtration, while single-speed pumps run full tilt all the time like driving in first gear. The upfront cost is $500-800 more, but in warm climates with 8-12 hour daily pump runs, the savings cover that quickly. They’re also quieter and last longer due to less wear. For new pools or replacements, skip single-speed entirely.