Harlequin HC50 HydroClear

Availability: In stock
£12,390.00 £10,325.00

The Harlequin HC50 Hydroclear serves >50 population dwelling. This sewage treatment plant has a virtually silent operation and carries full CE accreditation to BS EN12566-3.

£12,390.00 £10,325.00
SKU harlequin-hc50
Manufacturer Harlequin
Tank Type Underground
Capacity 18400 Litres
Dimension (LxWxH) 14780mm x 1400mm x 2560mm
Lead Time 10-14 Working Days
Product Description

HC50: 18400 Litre Harlequin HydroClear Waste Water Treatment Plant

18400 litre (approx. 4000 gallons) waste water treatment tank.

This tank is suitable for the storage and treatment of waste water for a population of 41-50 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 50-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 Of Products 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 some plastic tanks (oil, diesel, adblue, water and waste), their purchase price includes for delivery within GB mainland, excluding Scottish Highlands and surrounding islands. Some tanks do carry a delivery charge. Standard delivery time for tanks is normally 7-10 working days. However in most cases this time scale is quicker. If in doubt contact us for further information and/or a bespoke delivery quote.
Other products and accessories listed have a standard 2-3 day delivery service. Other services my be available so please contact us if you require a quicker service.
We only despatch products from our online shop to the UK, if you are outside of the UK, please contact us for a bespoke delivery 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. It is the customer’s responsibility to off-load these heavy items. Suitable equipment should be made available at the delivery address for offload, or alternatively an offload service should be arranged before the checkout process.
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 products delivery charge is included within the purchase price, whereas others carry a postage cost. All carriage charges are clearly stated when completing the checkout process.

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. All returns encorporate a minimum of 20% restocking fee.

Defective Products

If you believe that the products you have purchased from Tanks R Us are defective, please report this immediately to Tanks R Us. 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 Tanks R Us, 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 Tanks R Us.
In the main, Tanks R Us 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.

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 ordered.


Should at any point you feel the need to complain, then please contact Tanks R Us via 01469 531229 or by filling in the contact form on this website so we can address your concerns accordingly.