HC20 HydroClear

Availability: In stock
£4,015.00 £4,818.00

The Harlequin HC20 Hydroclear serves >20 population dwelling. This sewage treatment plant has a virtually silent operation and carries full CE accreditation to BS EN12566-3.

£4,015.00 £4,818.00
Manufacturer Part Number HC20
Manufacturer Harlequin
Weight 1001.0000
Tank Type Underground
Capacity 7960 Litres
Dimension (LxWxH) 5680mm x 1400mm x 2560mm
Tank Drawing HC20-Drawing
Product Description

HC20: 7960 Litre Harlequin HydroClear Waste Water Treatment Plant

7960 litre (approx. 1750 gallons) waste water treatment tank.

This tank is suitable for the storage and treatment of waste water for a population of 13-20 people.

Lower operating costs:

With its unprecedented 24-month service period and enhanced capacities the HydroClear can dramatically reduce long term operating costs. This is achieved through the inherent reliability of the simple but effective design rather than using complex systems that require frequent maintenance and desludging to achieve optimum performance.

Easy installation:

Further benefits are realised from the outset with optimised design characteristics meaning the 20-pop model can be installed using a 2.5-tonne mini-digger rather than the 7 or 12-tonne machines required for traditional plants. These design values are reflected across the entire HydroClear range resulting in simple, cost effective installation with minimal damage to the surrounding area.

Power failure default:

Even if the power fails the HydroClear will continue performing as a septic tank to ensure continued environmental protection.

Silence is golden:

High performance diaphragm blowers are used across the full range of HydroClears providing virtually silent operation.

Odour minimisation:

Hermetically sealed and market leading performance means the HydroClear effectively combats odour production.

How It Works:

The HydroClear benefits from a moving bed biological reactor, or MBBR, at its core. A new process in the package wastewater market, MBBR technology embraces the benefits of fixed film media processes without suffering their downfalls. Overgrowth of bacteria leading to ‘channelling’ is an issue with common process designs such as submerged aerated filters (SAF), rotating biological contactors (RBC) or trickling filter (TF) designs. Unlike conventional media beds, MBBR systems are self cleaning and unable to become blocked through channelling. Media interactions produce a sloughing effect that removes excess bacteria thus ensuring continuous re-growth, optimising overall reactor efficiency. The HydroClear system incorporates a three chamber design, ie, primary settlement, aeration chamber and final settlement.

Within the primary settlement chamber, large solids are removed by settlement and flotation. An accumulation forms at the base of the tank and is removed by desludging. The clarified water then passes to the biological reactor where it is treated to remove the dissolved constituents. Mobile media elements support large bacterial populations within the reaction chamber while induced air promotes complete mixing ensuring that full treatment is achieved. The treated effluent and sloughed off bacteria flows into the final settlement chamber where any remaining small solids are removed prior to the clarified effluent being discharged from the plant.


Sewage treatment plants for a single household should be sited 15m from the house. Approval and agreement should be sought from your local authority as early as possible. Although the HydroClear is virtually odour-free, please also consider the prevailing wind direction when choosing your site. Installations serving more than one building should be located at least 25m from habitable buildings. Some local authorities may allow HydroClears to be installed somewhat closer, but this needs to be checked and approved locally. Don’t situate your treatment plant close to a driveway, roadway or anywhere else that presents a risk of uperimposed loads and remember good access must be available for the tanker to empty your plant.

Site levels:

Be sure to survey the site and check levels and the fall on the drain carefully. The Balmoral HydroClear is designed to cater for a drain invert depth of 1m but this can be reduced to 750mm or increased using a Balmoral-supplied extension to suit speciNc site requirements.

Manufactured from high grade polyethylene this Harlequin tank is corrosion resistant, has high impact strength and is UV stabilised. All Harlequin tanks are CE marked and comply with the latest European standards.

Delivery & Returns

Delivery of orders from our online shop

All products advertised are brand new (unless otherwise stated) and exclude UK VAT that will automatically
be added to the total purchase cost (products and delivery) upon checkout/request for payment.
With Plastic tanks; fuel, waste and water, their purchase price includes for delivery within GB mainland,
except Scottish Highlands and any place only reachable via a tolled Ferry/Bridge from the mainland GB.
If in doubt contact us for further information and/or a bespoke delivery quote.
Other products listed have the choice of varied delivery options ranging from Standard Delivery throught to
Next Day before 1200hrs Noon. We also offer a budget delivery for single purchase items under £10 with
clear instructions on its use. Should these instructions be ignored, then we reserve the right not to honour
the order and only offer a partial refund against the inconvenience caused.
We only despatch products from our online shop to the UK, if you are outside of the UK, please contact
us for a bespoke quote.
All items will be delivered by a carrier that will require a signature. Heavy items like Tanks are delivered by an
articulated lorry, so adequate access to the delivery address is required for such a vehicle.
(If in any doubt, contact us).  Also it is the customer’s responsibility to off-load these heavy items, thus
suitable equipment should be made available at the delivery address.
We endeavour to monitor our stock levels, so if a product is out-of-stock it cannot be bought,
but occasionally errors may occur and if such does, we will advise you accordingly.

Carriage Charges

The buyer agrees to pay all costs for carriage as set out in the shopping cart. It maybe that a product details
'delivery is included within the purchase price', whereas others carry a postage cost, but these costs
are relevant to our source of supply.

Cancellation of Order

As per the United Kingdom and European Union’s consumer law, you have fourteen (14) days for your
receipt of our order, to cancel it entirely or any part of it, providing that the goods remain in a
re-saleable condition.
Should you wish to cancel any part or the whole order, please contact us first to obtain
the appropriate returns authorisation. After a Returns Authorization has been issued, we will get you
the return code for you to arrange for your goods to be collected, this is at your expense. Returns
encorporate a 20% restock charge.


As our website details the UK VAT added to each purchase on the receipt e-mailed to
the customer, if this customer then requests an additional VAT receipt to be sent, then a £10 service
charge will be applied. (Added to our website's t's and c's 16th October 2014) 
Defective Products

If you believe that the products you have purchased from Tanksrus are defective, please report this
immediately to Tanksrus. If they are or become defective within the manufacturer’s guarantee
period, we will arrange with the manufacturer to repair or replace the goods at their judgement and
consistent with their guarantee which is generally for a period of 12 months from the date of
delivery or invoice which ever occurs the soonest with the exception of hoses and hand pumps
which come with a limited 3 month warranty.
If an inspection of the goods is necessary on site and this deems there to be no fault of the manufacturer
or Tanksrus, an inspection charge will be applied.
Where a guarantee exceeds those required by law, these are provided at the product manufacturer’s
consideration and not Tanksrus.
In the main, Tanksrus will not be made liable for any claims for consequential damage or loss, as the
manufacture or carriage of all products is beyond our control.

Tank Warranties

  • Single skin tanks - 2 years
  • Bunded tanks - 10 years

Installation Requirements

As there are guidelines in place to minimise the risk of oil leaks, there are statutory requirements that
tanks or appliances used for the storage and access of oils are installed by a suitably competent
person and in accordance with the manufacturer’s installation and maintenance instructions.

Where electrical connections are essential with an installation, these must be undertaken by a
qualified electrician.

Any poor installation or not by someone who is suitably qualified could contribute to invalidating any
warranties held on a product.

Where such an installation is required, we strongly recommend that arrangements with a third party are
not made for the installation until products have been received. We aim to provide realistic delivery dates,
but delays are often the result of factors beyond our control (weather, traffic jams) and hence we cannot
be held liable for additional installation charges caused by any delays in you receiving the products

As Tanksrus have a suitably qualified installation team, if our installation is employed then it may be
easier to finalise a mutually convenient installation upon delivery.


Should at any point you feel the need to complain, then please contact Tanksrus via 01469 531229
so we can address your concerns accordingly.