Kessel Aqualift XL Basic Installation And Operating Manual page 28

4.6 Mount/shorten the upper section
Insert the lip seal so that it is flat.
Grease the inside of the seal.
Determine the final height of the ground level.
Measure how far the upper section must be pushed in;
note the minimum insertion depth (A = 10 cm).
If necessary, shorten and bevel the upper section so that
the pipes are not impaired.
Insert the upper section and fix with clamping ring.
Insert the cover plate (also used as protection during the
construction work).
4.7 Leak test
Fill the tank with clean water up to the top of the upper section.
Check whether moisture leaks from the tank or at the pipe connections.
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