Cadar monolithic filter floors create a strong, integrated underdrain structure designed for precise air and water distribution, durable service life and long-term filtration performance.
Open the flat or corrugated panel installation videos, or jump straight to the section you need.
Cadar has supplied monolithic floor designs and components for over 20 years.
Glass-reinforced cement panels designed for strength and installation precision.
Designed to support engineered nozzle placement and even distribution.
Absorb supports local projects with guidance, supply and technical documentation.
The Cadar monolithic concrete filter floor system is a cast in-situ solution that integrates with the surrounding civil structure. Unlike suspended filter floor systems, the monolithic approach helps reduce long-term risks associated with degradation, movement or structural failure.
The system is lightweight during installation, yet extremely strong once completed. It is designed to provide accurate air and water distribution through the filter bed, supporting effective backwashing, media stability and long-term filtration performance.
Absorb supports New Zealand projects with Cadar filter floor product supply, practical project guidance, documentation and interface support across media, nozzles and filter refurbishment works.
These underfloor views show the structural support zone beneath a monolithic filter floor — the area where air and water distribution, support columns and nozzle positioning all need to work together.
Support columns, panel layout and underfloor access are all part of the total filter floor design.
Cadar filter floors are available in flat panel and corrugated panel configurations, giving flexibility for retrofit, restricted headroom, new construction and larger filter areas.
The flat panel system is ideal for retrofit applications and restricted head situations where available height is limited.
The corrugated panel system is ideal for new construction and large filter areas where strength, durability and hydraulic performance are key priorities.
These videos show the installation approach for both Cadar GRC panel configurations, helping project teams understand the practical differences between the flat panel and corrugated panel systems.
A visual guide to the flat GRC panel installation process, suited to retrofit applications and projects where available filter headroom is restricted.
Open Flat VideoA visual guide to the corrugated GRC panel installation process, suited to new construction and larger filter areas where strength and hydraulic performance are key priorities.
Open Corrugated VideoFilter floors sit at the heart of media filtration performance. A well-designed floor supports even flow, effective backwashing, stable media performance and long-term reliability.
Download CatalogueCast in-situ construction creates a robust floor system that becomes part of the surrounding civil structure.
The system helps avoid some of the degradation and failure risks associated with traditional suspended floor systems.
Designed to support consistent air and water distribution across the filter floor and media bed.
Lightweight components assist practical site handling and accurate installation.
Whether it is a new treatment plant, a filter refurbishment or a restricted retrofit, we can help guide the product conversation early.
Share drawings, filter dimensions, existing floor type, media specification and any known hydraulic requirements.
We help identify whether a flat panel or corrugated panel system is likely to suit the application.
Product information, installation considerations and interface details can be reviewed with the project team.
Absorb supports supply, documentation and practical project guidance for New Zealand installations.
Download the catalogue for more information on the Cadar / KSH monolithic concrete filter floor system, panel options and technical considerations.
Send us your project drawings, filter dimensions, floor type, media specification or refurbishment brief and we’ll help identify the right approach.
