---
title: "What Is Filter sand? Pool Glossary | Marina Pool Services"
description: "Filter sand is the special-grade sand inside a sand filter, and it wears out over years. Plain-English pool glossary from Marina Pool Services in Grapevine, TX."
url: https://marinapool.multisites.ai/glossary/filter-sand
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Equipment

# Filter sand

Filter sand is the special-grade sand inside a sand filter, and it wears out over years.

Filter sand is not play sand. It is a sized, sharp-edged grade made for filters. Over time, the grains wear smooth and clump with oils and minerals, and the filter stops catching fine particles.

Many makers suggest replacing it every few years, so check your manual. Signs include cloudy water after a backwash, fast pressure rise, and sand returning into the pool. Changing sand takes work, and a damaged lateral under the sand needs a fix as well. A pro can handle it. See [sand filter](https://marinapool.multisites.ai/glossary/sand-filter).

[Marina can helpPool Filter Service & Installation](https://marinapool.multisites.ai/our-services/pool-filter-repair)

## Related terms

-   [Sand filter](https://marinapool.multisites.ai/glossary/sand-filter)
-   [Backwash](https://marinapool.multisites.ai/glossary/backwash)
-   [Pool filter](https://marinapool.multisites.ai/glossary/pool-filter)
-   [Multiport valve](https://marinapool.multisites.ai/glossary/multiport-valve)

## 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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