---
title: "What Is Stabilizer? Pool Glossary | Marina Pool Services"
description: "Stabilizer is another name for cyanuric acid, and it slows chlorine loss in sunlight. Plain-English pool glossary from Marina Pool Services in Grapevine, TX."
url: https://marinapool.multisites.ai/glossary/stabilizer
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Water chemistry

# Stabilizer

Stabilizer is another name for cyanuric acid, and it slows chlorine loss in sunlight.

Stabilizer and [cyanuric acid](https://marinapool.multisites.ai/glossary/cyanuric-acid) mean the same thing. You may also see it called conditioner or CYA on products and test kits.

Its job is to hold chlorine in the water longer when the sun is hot. In North Texas summers, an unstabilized pool can lose chlorine within hours. But stabilizer builds up from tablets and [dichlor](https://marinapool.multisites.ai/glossary/dichlor), and it never burns off. If chlorine keeps testing low even after you add more, test stabilizer first. A high reading often explains it. See [chlorine lock](https://marinapool.multisites.ai/glossary/chlorine-lock) for the next step.

[Marina can helpPool Maintenance Services](https://marinapool.multisites.ai/our-services/pool-maintenance-services)

## Related terms

-   [Cyanuric acid](https://marinapool.multisites.ai/glossary/cyanuric-acid)
-   [Chlorine lock](https://marinapool.multisites.ai/glossary/chlorine-lock)
-   [Dichlor](https://marinapool.multisites.ai/glossary/dichlor)
-   [Trichlor](https://marinapool.multisites.ai/glossary/trichlor)

## 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)

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