SKU: HC6 Harlequin

Postcodes within M25 will incur an additional £150
excess charge. which will need paying before dispatch

2 weeks lead time 

Delivery to Kerbside via 45 ft lorry on tanks over 2500 litre (Customer responsible to offload on all tanks)

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£2,200.00 (excl. VAT)
£2,640.00 (incl. VAT)

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Harlequin Hydroclear 6 Sewage Treatment Tank HC6

Free delivery available Price Promise Guarantee Business to Business Finance Available

Product Specification

Capacity & Dimensions

Weight 450 kg
Length 3400mm
Width 1250mm
Height 2560mm
Capacity 4400 litres (967 gallons)
Footprint 1680mm x 1680mm

Additional Information



Sewage Treatment Plant for Domestic and non-domestic sewage treatment of 6 people or 4 bedroom house or dwelling.

Producing an excellent pollutant removal level of 96.6%, wastewater from bathrooms, toilets, laundry and kitchens feeds directly into the treatment plant. From here it travels through the Harlequin HC6’s 3 treatment chambers, finally being discharged through either a soakaway or directly into a stream.

Easy to both install and maintain with low operating costs

EN12566-3 Certified – The HC6 Tank has 3 internal Chambers.

Chamber 1 | Primary Settlement Wastewater enters the treatment plant’s primary chamber. As the water passes through this chamber solid matter sinks to the bottom of the tank and begins to decompose. What is left is clarified water which then passes to the aeration chamber where a biological reaction takes place removing the dissolved constituents.

Chamber 2 | Aeration Within this chamber there is mobile ‘Filter Media’ and a ‘Bubble Diffuser’. The Filter Media support large bacterial populations while induced air from the Bubble Diffuser promotes complete mixing within the chamber to create a biological reaction and ensure that full treatment is achieved.

Chamber 3 | Final Settlement Finally, the treated effluent & bacteria flow into the final chamber where remaining small solids sink to the bottom of the chamber prior to the clarified effluent being discharged from the plant using natural displacement.

Inhabitants Served 1-6
Desludging 24 Months*
Total Capacity 4,400L
Organic Load 360g BODs/day
Max Daily Flow 1200L

*Desludging interval depending on usage



VIRTUALLY SILENT OPERATION High-performance diaphragm blowers are used and externally housed achieving a virtually silent operation.

LOW MAINTENANCE COSTS 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.

MBBR TECHNOLOGY Moving Bed Biological Reactor (MBBR) systems are self-cleaning and unable to become blocked through channelling, unlike most fixed film media systems.

ODOURLESS The system is hermetically sealed, coupled with a market leading treatment performance eliminates odour.

LEADING PERFORMANCE Producing an excellent 96.6% pollutant removal level, the final effluent can be directly discharged into a stream or soakaway.

POWER FAILURE DEFAULT The system keeps performing as a Septic Tank in the event of a power failure.

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