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The central rubber expansion is restricted to approximately 1/4"
smaller than the nominal pipe size.
Packers with 30 or 50 grout chamber for 4 or 6 pipes are available
from stock. Custom-made packers could be made for other pipe sizes and
other grout chamber lengths.
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The packer comes with two chemical ports, one test port, one sensor diaphragm
and 50 feet of semi-rigid hose assembly.
The preferred grout technique consists in 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, towards the
cleanout. The operator can work the packer in tandem with a mini camera
and or mark the hoses.
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