WITH MEASURABLE RESULTS
Repairing Sanitary Pipe That Had A 6 Inch Hole
HydraTite® (Internal Joint Seal System)
A sanitary line in California developed a hole that was allowing exfiltration. The 6” hole was in the 2 o’clock position in a short 54” steel cylinder pipe that ran through a concrete channel. The pipe had been lined and coated in epoxy, but the corrosion continued to degrade the pipe. An internal repair was needed that could be implemented quickly during the low flow period for the plant, between 3:00 a.m. and 10:00 a.m. Due to this restriction achieving the ideal environment for epoxy coating was not feasible.
A double-wide seal with an 18” stainless steel backing plate was chosen for the repair due to the minimal surface preparation needed, the quick installation, and how easily the seal could be tested for quality control purposes.
The sanitary line was shut down at 5:00 a.m. and installation began at 6:00 a.m. First, the epoxy lining had to be removed. After a uniform surface was achieved, the backing plate was positioned to cover the hole. Finally, the seal was locked in place so that the rubber ribs were positioned on either side of the backing plate. The installation was completed at 10:00 a.m.
In my 13 years of HydraTite installations, the quality and workmanship of the material and equipment sent to the jobsite is second to none. For this most recent installation – the first for this client – there was a lot of interest on whether the joint seal would solve this ongoing problem of one of the influent their 54-inch pipes at a large wastewater treatment plant. With over 20 utility staff on site that morning, the HydraTite joint seal install went perfect and performed flawlessly when the client placed the pipeline back in service.