WASTEWATER DISPOSAL

Types of Disposal Systems for Treated Waste Water

The treated water from your Sewerage Treatment System has to go somewhere within your Property Boundary, your On-Site Soil Evaluation complying with Australian standards AS/NZS 1547:2000 + Plumbing Codes determines the type of Effluent Disposal System you require. This is derived from the permeability test that will be carried out during the site visit and the Soil Category on your Property. There are several different types of Disposal Systems they are listed below :

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A waste water system on the Gold Coast
on site sewage

SURFACE SPRAY

Lilac High Density Poly Pipe trenched into the grounds surface with multiple QCV Hose Connection Points that allow you to plug in a determined length Hose with Dome Sprinklers. These are to be regularly moved within the Land Application Area to evenly distribute the Effluent Water. This also allows you to Remove the sprinklers easily to mow the grass or drive across the ground surface.

SUB SURFACE DRIP-LINE

This consists of a 13mm Lilac Pressure Compensated Drip-line trenched into the grounds surface 100mm to 150mm deep 1m apart in a determined ( m2 ) area this is back-filled with existing on-site soils or imported gravel/sand. Depending on your Soil Category This will evenly distribute the effluent water over the total allocated area.
on site sewage
on site sewage

COVERED SURFACE DRIP-LINE

Basically the same idea as the Sub-Surface Drip-Line System with a determined area covered in Pressure Compensated Dripper line or 65mm aggregated aggy pipe. This is then covered in light forest mulch allowing the treated water to sit just under the grounds surface and evaporates through the mulch cover.

CONVENTIONAL ABSORPTION BED / TRENCH

One or more Trenches/beds are dug in the determined Application Area then they are half filled with 20mm Drainage Gravel. On this first Layer of Gravel one or more lines of 100mm Slotted Pipe run through the field over the gravel. The pipe is then covered in another layer of gravel to a total of 300mm. A layer of Geo-Fabric is placed to avoid mixing the topsoil with the Drainage Gravel. Then the final Layer of Topsoil is laid over the Geo-Fabric to Ground level. This method allows the treated water to Disperse Slowly into the natural ground.
on site sewage

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