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Harlequin HC9 Hydroclear Sewage Treatment System (up to 9 person)

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Direct Drainage Reviews

The Harlequin HC9 Hydroclear sewage treatment system from Harlequin has an excellent pollutant removal level of 97%. Maintain with low operating costs and annual desludging, depending on occupancy. The standard invert depth of the Hydroclear is 1.0m, this can be increased if required, please enquire.

 Harlequin Hydroclear Brochure

Harlequin Hydroclear HC9 Technical Drawing and Specification

Harlequin Hydroclear Install Guide

 Commissioning and Servicing Information

Sample chambers and single, double or triple riser kit options are available - call to enquire on 01388 537 050 

 Free Tail Lift Delivery Made in the UK Best Price Guaranteed


Why choose a Harlequin Hydroclear HC 9?

  • Silent High performance diaphragm blowers are used and externally housed achieving a virtually silent operation.
  • Oudourless The system is hermetically sealed, coupled with a market leading treatment performance eliminates odour.
  • Unblockable Moving Bed Biological Reactor (MBBR) systems are self-cleaning and unable to become blocked through channelling unlike most fixed film media systems.
  • 96.6% Pollutant removal Producing an excellent 96.6% pollutant removal level, the final effluent can be directly discharged into a stream or soakaway.
  • Cheap maintenance Chamber 1 capacity is as much as 66% larger than other plants, making desludging intervals up to three times longer saving the owner significant costs.
  • Septic Tank Backup The system keeps performing as a Septic Tank in the event of a power failure.

 Harlequin Hydroclear HC 9 Specification

  • Population: 7 to 9
  • Max. Hydraulic Load (litres /day): 1350
  • Organic Load (g BODs/day): 540
  • Total Capacity (litres): 4475
  • Length (mm):2900
  • Width (mm): 1620
  • Empty Plant Weight (kg): 430
  • Energy Usage (kWh/day): 1.8
  • De-sludging Interval (months): 12*
  • Compliant with EN-12566 part 3: Yes
  • Inlet Depth (mm): 500
  • Outlet Depth (mm): 660
  • Installation Depth (mm): 2560

 Offloading of Harlequin Hydroclear HC 9

It is the customer's responsibility to offload with suitable equipment on the day of delivery and a failed delivery may result in additional charges.

Option for HIAB offload available on request at additional cost.

We recommend installers and/or plant hire & materials for install such as excavators, aggregates etc are not booked until you are in receipt of the goods. Direct Drainage cannot be held responsible for costs incurred due to unforeseen delays.

Lead times should only be used as a guide and are subject to change, please call our friendly team to confirm delivery and off-loading details on 01388 537 050.

Other sizes in the Harlequin Hydroclear Range

Harlequin Hydroclear HC6 - up to 6 people

Harlequin Hydroclear HC9 - up to 9 people

Harlequin Hydroclear HC12 - up to 12 people

Harlequin Hydroclear HC20 - up to 20 people

Harlequin Hydroclear HC30 - available on request

Harlequin Hydroclear HC40 - available on request

Harlequin Hydroclear HC50 - available on request

 How to contact your Harlequin Hydroclear representative?

Direct Drainage are authorised suppliers of Harlequin tanks and waste water systems. For expert technical advice contuct us now on 01388 537 050 or email us at

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