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Catch Pit 3D

What is a catch pit?

A catch pit is an empty chamber that is installed into a drainage system to prevent silt and debris from building up and causing blockages. Wastewater flows into the catch pit through an inlet pipe that is always raised above the floor level of the pit. Any sediment in the wastewater will settle at the […]

Interceptor & Septictank

What is an interceptor?

A 2 stage interceptor, otherwise known as a separator, is a filter system put in place to separate common oils and contaminants from wastewater before it enters the main sewage system. These pollutants are then stored in the interceptor before being periodically removed. Wastewater enters into the first chamber of the interceptor through an inlet. […]


The Dirty Dozen

The “Dirty Dozen” is a list that we at UKDN Waterflow have put together to assist you and your business as well as your home with maintaining a happy and healthy drainage system. To help, we have created a downloadable poster which you can print and hang up to help spread awareness. The “Dirty Dozen” are: […]


What is a p trap gully?

A p trap gully is used to stop bad smells emanating from the underground drainage system into the air around a property. It comes in two variations: one with a 90 degree outlet pipe and one with a 45 degree outlet pipe. The top of the gully must be attached to hopper, which collects rain […]


What is a manhole/inspection chamber?

A manhole, also known as an inspection chamber, is an access point to an underground drainage system. Access is necessary to ensure the drainage system can be cleaned, cleared and inspected at will. Manhole chambers are typically installed where a branch pipe joins a main drainage run in the drainage system, when there is a […]

Soil Pipe 3D

What is a soil vent pipe?

What is a soil vent pipe? A soil vent pipe (SVP), also known as a soil stack pipe or a drain-waste-vent (DWV), is a pipe that runs vertically from a property’s underground drainage system to the top of the property, just above the level of the roof gutter. SVPs are typically found outside the home, […]

Septictank 3D

What is a septic tank?

A septic tank is used for collecting and treating wastewater on a property that is not connected to the main sewer system. They are installed underground, and make use of natural processes to treat the sewage they collect. Typically made up of two chambers or compartments, septic tanks receive wastewater from an inlet pipe. The […]