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3.1. Preparation
3.1.1. Inspecting the pipe
Before using the Quick-Lock system, it is required to inspect the pipe to be
repaired and verify whether renovation using Quick-Lock is possible.
There must be at least one access point available via a manhole or an
inspection opening.
The manhole must have the nominal diameter of at least DN 800 in order to
ensure the passage of a camera / packer system. The manhole flume must
also be large enough to push the packer with the sleeve into the pipe.
3.1.2. Cleaning and preparing the pipe
• The pipe to be repaired must always be cleaned with a high-pressure jet
before installing Quick-Lock.
• Hardened deposits, roots and protruding sockets must be removed with
appropriate milling tools.
• The pipe should have no obstacles that may restrict movement.
• There must be no solids such as sand, gravel, hardened deposits or
waste water solids around the damaged area.
• Part 5 of DWA-M 143 prohibits works from being done in waste water,
which means the pipe section must be closed off. Depending on the
amount of water, bypassing may be necessary.
• In the case of high-pressure cleaning, do not use other cleaning equipment
since it may worsen the damage.
• The area to be repaired should be visually inspected and documented
after cleaning.
3. Use
