---
title: How long can the RESTUBE safety buoy be used as soon as the CO2 cartridge is inserted?
description: Even if the cartridge has been installed in the Restube for a long time, the Restube is always ready for use, as the CO2 cartridge is sealed and is only pierced when triggered.
---
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# How long can the RESTUBE safety buoy be used as soon as the CO2 cartridge is inserted?
Even if the cartridge has been installed in the safety buoy for a long time, the safety buoy is always ready for use, as the CO2 cartridge is sealed and is only pierced when triggered. It is only important that the CO2 cartridge is not pierced. Please note the maintenance instructions in the manual.
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