Jezzine Barracks has been used for defence purposes since the late 1800s. The historic site was identified to be sold off by the Department of Defence, however the strong community reaction to this prompted the Department of Defence, along with the Commonwealth and State Governments, to commit to an $A40 million dollar redevelopment plan.

From the date of the initial inquiry, the urgency to complete these works was made very clear to the companies involved. All the site works had been proceeding smoothly and on time until it was discovered that major infiltration and exfiltration was happening in all of the underground sewer lines.

Quick solution was sought once the problem had been reported as it had the capacity to stop all other works from being completed. Nuflow’s response to this was to promptly send a specialised team with all materials that could possibly be required up to the site for an immediate start. From the day of the initial enquiry to the team's arrival onsite was three days.

Upon completion of the CCTV inspection, it was confirmed that all the lines would require relining. In all, 70 m of 150 mm and 60 m of 100 mm diameter earthenware pipe; along with 5 m of 100 mm copper pipe required relining. The three man installation crew completed the entire project from the initial CCTV inspection in four days. The team achieved this by working longer hours to ensure as many liners as possible were made and installed each day.

Jezzine Barracks is historic site and defence museum, therefore extreme care was required so as not to disturb any of the property above ground and minimise any damage to the sewer lines due to their historical significance. CCTV investigation

The CCTV investigation showed the problem – all the earthenware pipes were either cracked or displaced, with a large amount of infiltration and exfiltration. This was causing an environmental issue with sewage leaching into the surrounding groundwater.

All the pipes required cleaning by high pressure jet before installation of any liners could commence.

Offering alternatives

Due to its historical significance the alternative action of excavating and replacing the damaged pipes was not a consideration. This would have caused lengthy delays as it could have involved archaeological monitoring of any disturbed area of ground. Also, due to the location of the pipes in the old toilet and shower blocks, the floor surfaces would have had to be removed.

This project reveals that NuFlow can work closely with customers on projects of a sensitive nature. In this instance an historic site will remain undisturbed but its infrastructure will continue to work efficiently for many years to come.

HannahBull plumbing Project Manager Peter Walker said “We could not recommend Nuflow any higher as a company that is excellent to deal with.”