Inspection chambers are a key component of underground drainage systems. In order for said systems to remain efficient and in good condition, there must be access points that allow for the underground pipes to be inspected, hence the name inspection chamber. Regular inspection of an underground drainage system is crucial as it will allow for any pipe blockages to be detected and removed if necessary.
From these access points, drain rods can be inserted and moved around to dislodge any material that has accumulated in the underground drainage pipes before jetting it away.
Inspection chambers should be placed in an underground drainage system in any place where there is a change in direction of more than 30 degrees in the pipework, or in larger applications where a straight pipe run continues for more than 22 metres.
The video below shows how to fit an inspection chamber into an underground drainage system.