The lifetime of pitch fibre pipes is estimated to be around 40 years due to the delamination of the pipes.
The delamination process can take a long time but increases aggressiveness when high temperatures or chemicals are used. When the pipe becomes delaminated it can cause blockages and cost a lot of money to repair. In only 3-4 months after the pipe has become delaminated a deformity in the pipe could change from a 20% difference to an 80% difference.
Another deformation that could occur in a pitch fibre pipe is ovalling. This is caused by the overhead ground pushing down on the pipe causing it to slightly flatten creating a oval.
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Only 2 uses of these jets could delaminate your pipes whatever the condition was before. You should watch out for companies who offer a ‘contract insurance plan’
With multiple uses, the re-rounder is able to force the pipe back into its original shape before clean water is used to flush out any deposits left behind. Finally our professional engineers install a cured-in-place pipe (CCIP) and impregnated it with either polyester, silicate or epoxy resin. The use of the re-rounder allows the pipe to be fixed without costly excavation or the removal of manholes.