> Interceptor Drainage

What is a Wastewater Interceptor?

A wastewater interceptor is a large underground chamber often located in large retail parks, factories or petrol stations.  They are designed to “intercept” petrol, oil, grease, silt or grit before entering and contaminating public drainage systems.  Water escapes from the interceptor but wet waste gets left behind and builds up over a period of time.

What is Interceptor Drainage?

In order to meet safety and compliance regulations, interceptors should be drained and cleaned out regularly by jetting tankers.  The residue is then treated on site using a multi-stage filtration system to remove hydrocarbons to almost non-detectable levels.  Any contaminated waste is taken away to be disposed of at a licensed treatment facility and filtrated water remains onsite.  You will receive a disposal certificate which confirms that you have met your own environmental requirements.

Why is Interceptor Drainage important?

Without regular emptying and maintenance of wastewater interceptors, blockages could occur which could lead to a health, safety or environmental hazard for your business.  The experienced engineers at D&J Drain Services have the technical knowledge to ensure interceptors are cleaned out and are working efficiently for your business.  This will give you peace of mind that the risks of flooding or contamination are reduced as is the possibility of expensive clean-up costs which could be very detrimental to the company’s reputation.

Does Interceptor Drainage benefit the environment?

In a word, yes.  Not only does it minimise the chances of flooding and untreated wastewater ending up in rivers, there is less waste transported for disposal and ending up in landfill.

What about an emergency with our interceptor?

We understand that emergencies may arise with your interceptor.  We provide 24-hour response teams to assist you and minimise any disruptions that could affect your business. We provide immediate assistance to businesses in Belfast, Ballymena, Carrickfergus, Antrim, Larne, Lisburn and any surrounding areas.

To find out more about how we can help with your interceptor, please call us today on 07925153827 or email 


Mobile Interceptor Cleaning

> What our customers say about our interceptor drainage and cleaning service


"David and James from D&J Drain Services are a great team.  They are very easy to deal with.  They arrive when they said they would and do a first class job at cleaning the interceptor for our car wash. I have been using their services for 5 years now and would highly recommend."

Alan Murphy, Main Street Car Wash, Larne