Harlequin Hydroclear HC20

Harlequin Hydroclear HC20
Capacity 7690 Litres
Length: 5680 mm
Width: 1400 mm
Height to ground level: 2460 mm
Population serve: 13-20 people
Shipping: £215 straight to site, mainland UK.  Please contact us if the delivery address is in Scotland, Ireland or in the London congestion area for a shipping quote.


Options Total: £ 0

Factory Fit Accessories

Treatment Plant Alarm (£95.00)
Pumped Outlets (£370.00)
Sample chamber c/w Flange & Lid (£215.00)
Extension Neck (£35.00)


The Hydroclear HC20 sewage treatment plant is ideal for the domestic market, and has been tested to EN 12566-3 and has a CE marking

With its unprecedented 24-month service period and enhanced capacities the HydroClear can dramatically reduce long term operating costs.

The HC20 sewage treatment plant model can easily be installed using a 2.5-tonne mini digger resulting in simple, cost effective installation with minimal damage to the surrounding area.

The model has a power failure default meaning that even if the power fails the HydroClear will continue performing as a septic tank to ensure continued environmental protection.

The system operates virtually silently as high performance diaphragm blowers are used across the full range of HydroClears

Odours are minimised as the HydroClear is hermetically sealed and market leading performance means it effectively combats odour production.

The HydroClear offers a highly flexible solution to space-limited sites. With a pollutant removal level of 97%, and a desludging recommendation of 6 months, this model is efficient to run.

HC20 Sewage Treatment Plant Features:

    • Modular design that can increase capacity by linking together multiple tanks
    • UK Manufactured in high quality MDPE
    • Population served: 13-20
    • Max Hydraulic load: 4000 Litres/day
    • Organic load: 1200g BODs/day
    • NH3 160g/day
    • Total capacity 7690 Litres
    • Energy used 2.7kWs/day


Terms and conditions apply.  We deliver tanks direct to site.  It is the customer’s responsibility to ensure that adequate access and turning space is provided for a flatbed vehicle and that appropriate offloading facilities and equipment is provided. Please contact us on 01953 665940 for Hiab and other special delivery requests and we will be happy to assist.

Due to recent transport updates, there is extra carriage charge if the delivery address is within the M25, certain postcodes are subject to a congestion charge.  Please use the link Click here  to view the post codes affected. Then please give us a call for a shipping quote.

These sewage treatment plants replace the septic tanks as the septic tanks are no longer legal.

Warranty: 10 years

Lead Time:  The estimated lead time for this sewage treatment plant is 3 weeks, but we will confirm this at the point of order.

Additional information

Weight 700 kg
Dimensions 5680 × 1400 × 2450 cm


Tank Size

7,500 – 9,000 Litres

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