---
title: "What Is Shaft seal? Pool Glossary | Marina Pool Services"
description: "The shaft seal is a small seal that stops water from leaking along the motor shaft. Plain-English pool glossary from Marina Pool Services in Grapevine, TX."
url: https://marinapool.multisites.ai/glossary/shaft-seal
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Equipment

# Shaft seal

The shaft seal is a small seal that stops water from leaking along the motor shaft.

The shaft seal sits between the wet end and the motor. When it wears, water drips from under the pump. That water can reach the motor and ruin the bearings.

A drip at the seam between the pump and motor is the usual sign. Seals wear faster with heat, running dry, or old age. A seal is a low-cost part. Replacing it early can save the [motor](https://marinapool.multisites.ai/glossary/pump-motor), but the job needs the pump opened and the power locked off. Call a pro if you are not sure.

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

## Related terms

-   [Pump motor](https://marinapool.multisites.ai/glossary/pump-motor)
-   [Motor bearings](https://marinapool.multisites.ai/glossary/motor-bearings)
-   [Pool pump](https://marinapool.multisites.ai/glossary/pool-pump)
-   [Air leak](https://marinapool.multisites.ai/glossary/air-leak)

## 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)