IDS Medium Duty Structural Chamber - installation procedure

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Excavate area for pit to be situated.
 
Ensure bottom of pit is level to allow base to sit correctly. Base should be compacted 10mm clean stone or lean mix concrete.
 
Lower chamber base into void and position as required.
 
Place wall section on base section.
 
Ensure chamber is a square and wall section is flush on base section.

Place bracing inside of chamber
Place concrete or backfill around outside of chamber.
Ensure backfill is well compacted or concrete is tamped.
Fit next wall section
Ensure sections are fully interlocked.

Make sure the chamber surround is well compacted.
Place concrete surround around top of chamber.
Site frame on to chamber/concrete surround.
Adjust frame to level required.
Haunch frame for permanent set. Job done.