Contact Us

Republic of Ireland

Phone: 021 4387 200
Email: sales@enva.com

Northern Ireland

Phone: +44 (0) 289 756 1574
Email: sales@enva.com

Great Britain

Phone: +44 (0) 779 912 1479
Email: sales@enva.com

Ger Cotter

Business Development Manager

Phone: +353 (0) 86 858 6388
Email: gerard.cotter@enva.com

Where we have completed a CCTV Survey, and the client has received a copy of our report; we will highlight the defects in the report that need to be addressed. In order to meet EPA requirements; the defects to be addressed will more than likely involve either some or all of the works outlined below.

Patch Repairs

If the defect has been identified as a crack in the pipe, resulting in leakage from the line, then this can be repaired using a no-dig method. This system can be very beneficial in industries where production is required on a 24/7 basis, with minimal disruption allowed. The repairs are carried out within the pipeline itself by placing the required equipment, camera etc. through the nearest manhole. The patching materials used will be based on the use of the lines – i.e. process, storm, or foul.

Relining of Pipes

Where defects in the pipe network require more substantial repairs than a patch; then another option available is the relining of the damaged pipe. Again, the benefits are similar in that there is no excavation requirement, resulting in no downtime of production and a more cost effective solution to the problem. Once the existing pipe network has not collapsed; then it is possible to repair the pipe using a reinforced material suitable for the pipe use, resulting in a permanent structural repair.

Lateral Cutting

If it is evident from the CCTV survey that there are some obstructions or intrusions in the pipeline; then these can be removed using a robotic cutting device. Again, the benefits are similar to the other rehab works listed, in that there is no excavation required, no downtime of production, and a cost-effective solution to the problem. Examples of intrusions in the pipe network would be roots, steel lateral connections, timber, etc. This system would be also used to cut out openings of lateral connections following the completion of relining works.

Pressure Testing of Lines

To meet the conditions of some IPPC licenses; it is necessary to carry out pressure testing of their pipe network. This can be done either by way of a hydrostatic test or an air test. In some cases; these tests are carried out to ensure that there aren’t possible pinholes in the system, which would not be evident in a CCTV Survey. If such tests result in a failure on some lines; then these can be repaired using a patch repair.