---
title: "What Is Freeze guard? Pool Glossary | Marina Pool Services"
description: "Freeze guard is a control that starts the pump when the air gets cold to keep water moving. Plain-English pool glossary from Marina Pool Services in Grapevine..."
url: https://marinapool.multisites.ai/glossary/freeze-guard
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Equipment

# Freeze guard

Freeze guard is a control that starts the pump when the air gets cold to keep water moving.

Moving water freezes more slowly than still water. A freeze guard watches the air temperature and runs the pump when it drops near freezing. That helps protect pipes, heaters, and filters.

It does not guarantee safety. A hard freeze or a power outage can still cause damage. A power cut stops the pump, so plan for that. A freeze guard needs a working [sensor](https://marinapool.multisites.ai/glossary/freeze-sensor) and a pump that is ready to run. Marina Pool Services installs Freeze Guard systems for North Texas pools.

[Marina can helpFreeze Guard & Winterization](https://marinapool.multisites.ai/our-services/freeze-guard)

## Related terms

-   [Freeze sensor](https://marinapool.multisites.ai/glossary/freeze-sensor)
-   [Pool timer](https://marinapool.multisites.ai/glossary/pool-timer)
-   [Pool automation](https://marinapool.multisites.ai/glossary/pool-automation)
-   [Pool pump](https://marinapool.multisites.ai/glossary/pool-pump)

## 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)