---
title: "What Is Spa? Pool Glossary | Marina Pool Services"
description: "A spa is a small heated pool for soaking, often joined to a larger pool. Plain-English pool glossary from Marina Pool Services in Grapevine, TX."
url: https://marinapool.multisites.ai/glossary/spa
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Spa and safety

# Spa

A spa is a small heated pool for soaking, often joined to a larger pool.

A spa joined to a pool may share the pump and filter, or have its own. Hot water uses up sanitizer fast, so a spa needs close attention.

Test the water often and keep it clean. Valves direct flow between pool and spa, and an actuator can switch them. Follow the label for each chemical. Children and people with health issues should limit soak time. Marina Pool Services lists pool and spa lighting among its services.

## Related terms

-   [Hot tub](https://marinapool.multisites.ai/glossary/hot-tub)
-   [Spa jets](https://marinapool.multisites.ai/glossary/spa-jets)
-   [Spillway](https://marinapool.multisites.ai/glossary/spillway)

## 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)