PRESSURE TESTING & PIPE STERILISATION
Lowflo’s team specialise in providing independent hydrostatic pressure testing and analysis for the water industry in Ireland and for Irish Water. We provide skilled and experienced engineers who can provide guidance on the correct testing procedure, equipment use and up to date industry test standards (IGN 4-01-03) to ensure your pressure tests are carried out correctly, safely and accurately with minimal disruption.
Pressure Testing & Certification to BS Standards
Analysis of the pressure data in accordance with IGN 4-01-03 and assembling of formal test reports containing complete details of tests including Pass or Fail Results will be completed in 24hours once data is collected.
Pipe Types & Testing Standards
Pressure Testing of all plastic pipe materials such as PE and PVC Water main need to be completed using calibrated test gauges and pressure data loggers. Loggers record the pressure losses as the pipe structure relaxes and provides the pressure decay data required to carry out analysis of pipe soundness in accordance with IGN 4-01-03 Steel, Ductile Iron, Cast Iron & GRP
Pressure Testing of metal pipework is completed using the Water Loss/Water Added Test and correlated against Allowable Leakage Rates allowed under IGN 4-01-03.
Analysis is carried out in accordance with the Water Industry Information & Guidance Notes IGN 4-01-03 The document is entitled “Pressure Testing Of Pressure Pipes and Fittings For Use By Public Water Suppliers” it includes details of test methods for the various pipe materials. It is used by pipe contractors and testing companies and is the standard used in procurement specifications by many water companies.
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Chlorination & Swabbing
To safeguard water quality and public health, it is required that private supply pipes are chlorinated and tested before a connection is allowed to the council/Irish Water water main.
Each chlorination commences with flushing of the system with clean drinking water to remove any debris and providing a clean base for the chlorination to take place.
Following the initial flush through, the system is filled with a chlorinated solution (minimum 50mg/l strength) which will remain for a minimum of 1 hour. After this contact period has been achieved, Lowflo technicians will neutralise the chlorinated solution and dispose of it safely, flushing the system through again with clean water to remove any residual traces of chlorine.
The system is then again filled with clean drinking water, sitting once more for a minimum contact period of 1 hour. This final flushing water will then be sampled for Chemical and Microbiological Analysis, and the samples submitted to one of our certified laboratories to be analysed using approved methods.
Following receipt of the analysis from the laboratory, Lowflo provides a Certificate of Chlorination, along with a full Analytical Report for each sample. These results and certificates are usually provided within 7 days of the work taking place providing assurance that the system is safe for use in the supply of wholesome drinking water. This evidence can be provided to Irish Water to enable a connection.
We are available to discuss all your results, their possible meanings and provide guidance on overcoming any failures, like pipe swabbing or Leak Detection.