Drain Cleaning: Tests & Surveys

Why Do Drains Need Cleaning?

In the past, the material used in pipes to dispose of waste-water and storm-water in residential areas included various types of clays, concrete and even asbestos. These were a big improvement on the older open drain and stone culvert. However because the materials described are generally very rigid, they would not sustain any degree of movement in the surrounding ground. Over time these old pipes were prone to cracking and or displacement at the joints. Consequently they leaked and the leakage if undetected, will ultimately cause foundation failure.

drain pic 1

CCTV footage of a drain to check for drain blockages

In or around 1970, PVC pipework was introduced. It is a more flexible and reliable system in every aspect from performance to ease of installation. If you suspect your drainage system is damaged then a drains test would pinpoint the problem and provide all the information necessary for a solution.


Hydrostatic Drain Test

Hydrostatic Drain Test

Drain Tests & Surveys

A Hydrostatic Drain Test typically takes about two (2) hours to complete. It involves filling the drains with water, pressurising the water and noting the location and amount of any leakage occurring.

A Hydrostatic Drains Test establishes:

  • Whether one (1) or two (2) drainage systems are in place.
  • The type of pipe used.
  • The number and location of manholes & “access junctions”.
  • The direction of flow.
CCTV Drain Cleaning: Test

CCTV Drain Cleaning: Test


A CCTV drains survey can also provide valuable information on the condition of a drainage system. It involves:

  • Inserting a small camera and light source into the drains to be surveyed.
  • Recording the images and audio commentary from the operative onto a DVD.




Drain Test Equipment

Drain Test Equipment

Drain Survey

A Level Survey carried out on the existing drainage system can assess the gradient within the pipe, quantify the problem and help establish the corrective measures necessary.

A written detailed report is issued to the client and if necessary a copy of the report is sent to the client’s engineer.



Contact us about Drain Cleaning: Tests & Survey

If you are in the public sector, a developer or a contractor, and you are considering working with us in relation to drain clearing and testing, or any of our ancillary services, contact us in our Dublin office on 01 6310300 or in our Cork office on 021 4345999.