---
title: How often should I replace the sample line on the GastroCH4ECK Gastrolyzer?
description: When does the sample line on the GastroCH4ECK Gastrolyzer need changing?
---

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# How often should I replace the sample line on the GastroCH4ECK Gastrolyzer?

## When does the sample line on the GastroCH4ECK Gastrolyzer need changing?

Bedfont advises changing the sampling line if:

1. The material shows signs of wear
2. The sample line material has turned yellowish due to being exposed to direct sunlight

Please contact [your local distributor](https://www.bedfont.com/find-my-distributor/) to obtain a replacement.

If the problem persists or has not been resolved by the information provided above, please contact your local distributor for more information. Find out who your local distributor is from our website [here](https://www.bedfont.com/find-my-distributor). 

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