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Mainline Grouting (150mm - 1800mm)

The mainline grouting process begins by air-testing joints to determine grouting requirements. If a joint fails an air-test, a packer containing the grout is inserted into the line through the manhole. After centering on the joint, the packer is inflated, and grout is injected through the joint connection. The grout creates a hard, impermeable gel around the outside of the pipe. The packer is then deflated, and pulled back for camera inspection, then scraping the remaining gel ring leaving 100% flow capacity in the pipe.

Lateral Grouting

The Flexible Push-type packer is used to test and seal lateral lines from an above ground access or cleanout. It has a 3.0 foot or 5.0 foot long grouting chamber. While air-testing, the center element also expands so that when grouting is completed, only a slight skim of residual grout is left behind. The preferred test and Grout technique consists of pushing the packer to the far end of the lateral, and bringing it back in 3 or 5 foot increments, (the length of the grout chamber), testing successive sections and grouting those which dont meet test requirements.

IC to Main (100mm - 150mm)

Service Interface in Main (150mm - 600mm MAINS / 100mm - 200mm Laterals)

Service interface Grouting

Service Interface in Main (150mm - 600mm MAINS / 100mm - 200mm Laterals)

Long Reach Service Grouting

Manhole Grouting