---
title: "What Is Impeller? Pool Glossary | Marina Pool Services"
description: "The impeller is the spinning part inside the pump that moves water. Plain-English pool glossary from Marina Pool Services in Grapevine, TX."
url: https://marinapool.multisites.ai/glossary/impeller
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Equipment

# Impeller

The impeller is the spinning part inside the pump that moves water.

The impeller is a small wheel with curved vanes. It spins and throws water through the pump. When debris jams it, flow drops and the motor works harder.

Watch for weak flow, rattling, or a pump that hums but pumps little. A clogged or cracked impeller needs cleaning or replacement. Always switch off power at the breaker before opening the pump. Electrical and motor work is for a qualified pro. Marina Pool Services offers [pump](https://marinapool.multisites.ai/glossary/pool-pump) repair.

[Marina can helpPool Pump Repair & Installation](https://marinapool.multisites.ai/our-services/pool-pump-repair)

## Related terms

-   [Pool pump](https://marinapool.multisites.ai/glossary/pool-pump)
-   [Pump motor](https://marinapool.multisites.ai/glossary/pump-motor)
-   [Pump basket](https://marinapool.multisites.ai/glossary/pump-basket)
-   [Cavitation](https://marinapool.multisites.ai/glossary/cavitation)

## Need a hand with your pool?

Call or text and tell us what your pool needs. Estimates are free for qualifying services, and same-day estimates are possible when the schedule allows.

[Call (817) 896-1120](tel:+1-817-896-1120)[Get a quote](https://marinapool.multisites.ai/contact)

![A pool technician working on an equipment pad](https://marinapool.multisites.ai/_astro/technician-equipment-pad.BW5xZMNY_Zum1K5.webp)