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  • £2,729.00 ex. VAT
  • £3,274.80 inc. VAT
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Description

The new Clearwater BioAir CW4 sewage treatment plant uses aerated technology to produce a high-level water quality discharge. This CW4 version is suitable for properties with up to 10 bedrooms and is also suitable for small commercial installations.

Choosing the right sewage treatment plant is important, as in the case of a property alteration or extension, Building Control will insist upon the installation of a plant which is suitable for handling the increased flows and loads of the new development.

 

Key Benefits of the Clearwater BioAir CW4:

  • Shallow dig design makes excavation and installation easier
  • Low-impact visual foot print with a lockable child-proof cover
  • GRP construction
  • CE Marked and Complies with EN 12566-3
  • Available with either a gravity or pumped outlet (IPS) option
  • Remote blower for easy servicing
  • Supplied with isolator switch

 

 

 

 

Specification:

Model Number: CW4 
Max. Number of Full-Time Residents (PE): 12
Daily Flow (m3/d): 1.8
BOD Load (kg BOD5/d): 0.72
Weight when Empty (kg): 500
Overall Diameter (mm): 1920
Length (mm): 3238
Height Standard Invert (mm): 2245 - 3745
Inlet Invert (mm): 500 - 2000
Outlet Invert (mm): 600-2100
Drainage Connections (mm): 110
Warranty (if registered) (yrs): 1
Material Construction: GRP

 

Options:
 
Gravity or Integral Pumped System (IPS):
 
Gravity is the standard no-cost option, however where the inlet to the watercourse or soakaway is higher than the outlet of the treatment plant you will require the optional Integral Pumped System (IPS) as this will pump the wastewater uphill and into your discharge point. Depending upon site conditions the IPS system will pump from 1.0m head up to a distance of 200m or a maximum of 6.0m head with a distance of 15m - Please contact us on 0800 0568 350 should you require more information on the IPS and its capabilities.
 
Invert Depth:
 
The standard invert depth is 500mm however, where a deeper invert is required there is the option of adding risers to increase it to a maximum of 2.0m for both gravity or IPS systems. 
 
 
Installation:
Full instructions and dimensions can be downloaded from our Product Data.
 
Delivery:
FREE delivery of this product includes the whole of the UK Mainland (including Scotland) and is subject to suitable access for a large goods vehicle. This product is delivered to the kerbside. It is the customers responsibility to provide suitable mechanical offloading facilities (eg. JCB excavator or loader) to offload this tank or alternatively, you can select the cost option of a hi-ab offload.
 
If you need any assistance please contact us on 0800 0568 350 prior to purchase - please remember we are here to help! 

 

 

 

Sunday 7th June 2026
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