n IMIESA - Innovative drainage solution - geotechnical engineering

Volume 43 Number 10
  • ISSN : 0257-1978
  • Author
  • Source : IMIESA, Volume 43 Number 10, Oct 2018, p. 43 - 43
  • Accreditation : Department of Higher Education and Training (DHET)


The Charlestown Housing Project in Newcastle, KwaZulu-Natal, was designed to consist of 1 200 units when complete, with an on-site sewage treatment plant planned for a later stage. As a temporary measure for the 500-unit Phase 1 already under construction, MNA Consulting required a French drain system to be installed downstream of an adequately sized septic tank. However, the costs of transporting tonnes of stone for the conventional stone and pipe French drain system was prohibitive and the feasibility of the project became reliant on an effective alternative being found. The identified solution was to install 3 000 of Kaytech’s Quick4 Infiltrator chambers, completely eliminating the need for a conventional French drain soakaway system. Infiltrator chamber systems promote effluent infiltration into the soil with 100% efficiency, while requiring 50% less space than French drain systems.

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