Hydro-Vortex Drop™ Shaft  
 

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  • How it works
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 Maintenance
The only maintenance should involve checking that the intake to the both the main pipe and the air suppressor pipe are not blocked. The high-level suppressor pipe is typically 150mm in diameter and the main pipe typically ranges from 200 to 600mm in diameter. As such, the likelihood of a blockage occurring is minimal, though a coarse screen to protect the inlets is recommended should large objects be expected within the system.