Not all impellers are built the same — and the difference matters 🔧💧
🔹 Open: vanes fully exposed — best for solids, easiest to clean, but lower efficiency
🔹 Semi-Open: one back shroud adds strength — balanced, handles moderate solids
🔹 Closed: fully enclosed vanes — highest efficiency & pressure, but for clean fluids only
The right impeller depends on what you're pumping: clean water needs closed, debris-heavy water needs open.
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