without costly digging up
Damage repair is now also possible in a closed construction method without extensive digging. Short liners are used for this. This means that the damaged area is lined from the inside with a special resin-impregnated glass fibre mat.
Procedure of a short liner rehabilitation
- Preliminary cleaning of the pipe
- Check of the extent of damage with TV inspection
- TV inspection to document the actual condition and exact measurement of the damaged area
- Application of a resin-coated glass-fibre mat on an installation device (packer), positioning of the packer under camera observation
- Proof of repair success by TV inspection
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