Septic Tank Conversion Units

Septic tank conversion units can be classified as two types - BEWARE!

  1. 'ADD-ON' plants which are installed after an existing septic tank to convert it into a sewage treatment plant which can discharge, legally, directly to a ditch. These must have the EN 12566 Certificate in order for compliance with Environment Agency standards.

  2. 'IN-TANK' conversions which are sold to fit into an existing septic tank to 'convert' it to a sewage treatment plant. These do not have the mandatory EN 12566 Certificate required to qualify for an Exemption and need a Permit from the E.A. before installation occurs.

The EN 12566 test runs for 38 weeks at an independent EN Test Centre. It monitors the performance of the plant under a variety of circumstances - normal use, underloading, overloading, etc. This test costs around £30,000 per plant and you cannot test 'in-tank' systems, as they are not consistent, i.e. septic tanks are different sizes, different shapes, etc. and so there is no EN Test for them as it would be pointless. The only way that you could obtain an EN12566 Certificate for one would be to dig up the septic tank and send it, complete with the 'in-tank' conversion to an EN Test Centre to be tested as a complete system. Unfortunately, this would cost you around £30,000.

The 'in-tank' conversion kits that are available are about the same price as add-on plants, but they require a Permit from the E.A. prior to Installation.

There are two add-on plants that do have the EN 12566 Certificate, as they both have been tested using septic tank effluent:. They are:

 BIOKUBE sewage treatment plant and septic tank conversion FILTERPOD sewage treatment plant and septic tank conversion 
 BioKube Venus Septic Tank Conversion Filter Pod sewage treatment plant small image

Benefits of Add-On septic tank conversions

  • No New Soakaway Needed
  • Direct discharge to ditch
  • Saves Thousands of pounds on the drainfield installation
  • Makes current septic tank to ditch discharges LEGAL
Effluent before the septic tank conversion was istalled  Effluent after the septic tank conversion was added to the septic tank
Effluent sample before the add-on plant was installed Effluent sample after the add-on plant was added to the septic tank

The FilterPod and BIOKUBE meet the new EU wastewater standards for direct discharge to a watercourse. They are both high quality HDPE septic conversion tanks. Both septic tank conversion units can also be used after a sewage system that is failing to meet the consent to discharge standards as well as solving your septic tank problems. 

The septic tank conversion unit converts septic tanks to full sewage treatment systems by treating the dirty water coming out of the septic tank.

BENEFITS of the Septic Tank Conversion Unit

  • NO restrictions with this sewage system on items flushed down the toilet.  The septic tank intercepts all tampons, panty liners, make-up remover pads, cotton buds, nappy liners, etc. which cause problems in many sewage treatment units.  This makes the sewage system very useful for Holiday Lets and Rental properties.

  • Extremely low system running costs - either non-electric (FilterPod) or 57 Watts/hr (BIOKUBE), equal to a very small lightbulb

  • Low maintenance costs. One service per year and emptying of the septic tank only

  • Small footprint

  • Converts septic tank effluent into very high quality final effluent

  • Differing invert levels are accommodated

RESTRICTIONS of the Septic Tank Conversion Unit

  • You MUST be CERTAIN that the existing septic tank is completely watertight. Older tanks and brick or concrete tanks are often porous, cracked, or have leaking seals.
  • NO rainwater must enter the foul drains.

Page created 12/02/2016