---
title: Prevent vacuum chamber contamination | High vacuum system
description: Learn how to prevent vacuum chamber contamination in high vacuum systems during power outages with this simple solution. Get the application note here!
---

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# Foreline Interlock

# Solution 

# Application Note

Contamination of the vacuum chamber in high vacuum systems can occur in the event of a power outage when oil from the roughing pump backstreams through the forelines.

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**This application note explores a simple solution to avoid the potential downfalls of power outages**

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