E-RETE Sewerage Manholes components are lined internally with 20mm thick high alumina cement motar or painted with 2 layer of epoxy tar.
Eccentric Rest Platforms are provided at every 3m depth for manholes exceeding 5m deep.
Lifting holes are provided on all manholes components.
E-RETE Sewerage Manholes components can be used for a depth of up to 9m with cast insitu concrete surround of 150mm min. thickness.
Upon request, E-RETE Sewerage Manholes Components can be designed and manufactured for a depth exceeding 9m.
Advantage over the cast in-situ structures :-