The Koster One-Day-Site Packer allows injection work
to be completed in one day. The screw packer for
pressure injection has a firmly mounted cone-head
fitting and two non-return valves. Immediately after
injecting, that part of the port stays in the wall sealing
the borehole so that no injection material can flow out
of the borehole even under high pressure. The borehole
can then be closed immediately after injection.