---
title: "What Is Cavitation? Pool Glossary | Marina Pool Services"
description: "Cavitation is noise and damage caused when a pump starves for water. Plain-English pool glossary from Marina Pool Services in Grapevine, TX."
url: https://marinapool.multisites.ai/glossary/cavitation
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Equipment

# Cavitation

Cavitation is noise and damage caused when a pump starves for water.

Cavitation sounds like gravel or marbles in the pump. It happens when the pump cannot get enough water. Tiny vapor bubbles form and collapse, and they pit the [impeller](https://marinapool.multisites.ai/glossary/impeller) over time.

Causes include a clogged basket or skimmer, a closed valve, a low water level, an undersized suction line, or an [air leak](https://marinapool.multisites.ai/glossary/air-leak). Shut the pump off and check baskets and valves. If the sound continues, have a pro inspect the pump, since ongoing cavitation shortens motor life.

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

## Related terms

-   [Air leak](https://marinapool.multisites.ai/glossary/air-leak)
-   [Impeller](https://marinapool.multisites.ai/glossary/impeller)
-   [Pump basket](https://marinapool.multisites.ai/glossary/pump-basket)
-   [Priming](https://marinapool.multisites.ai/glossary/priming)

## 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)