Absolute Concrete have been producing septic tanks for over 30 years. Available in plastered form or in recent times, more commonly in pre-cast format. They are simple, reliable and cost effective solutions for your septic waste. Our precast units hold roughly 6,000 litres and weight close to 5 Tons and can be Hi-ab’d straight into a prepared hole.
Septic tanks are manufactured to NZS3107:1997 and are designed to be buried with a maximum of 600mm fill cover.
Standard Primary System Septic Tanks work on a trickle in, trickle out basis. They come in both single and dual chamber option. A filter is fitted to ensure most of the solids are retained in the tank and do not clog the effluent field. The dual chamber tank is designed to retain more of the solid matter back in the primary chamber to effectively put less pressure on the filter.
Filters should be inspected and cleaned regularly to ensure they don’t block and back up the system.
These tanks are also ideal for storm-water attenuation, especially on sites where room is restricted.
We also manufacture a range of mini stand alone pump chambers that can be used to convert existing single chamber septic tanks into dosing or pump out systems.
Please call us for more information.