Grey Water Treatment

Nature Clear GWS10 provides a simple and low cost effective means of treating grey water. Not only is the equipment low cost, but also, if your site is suitable, the only significant excavation work required to install the system will be the trenching. The ongoing costs will be similar to those of a standard septic system .

In order for the filtration tank to work most effectively food scraps and grease should be removed from the kitchen waste water via a grease trap. A 45L grease trap is included with the GWS10. A larger grease trap is required by some councils and can be supplied if requested (see below for pricing).

The filtration tank, which is less than 1 cubic meter in size, consists of a pine bark coarse filter on top of different grades of sand and gravel. The pine bark traps large particles not caught in the grease trap plus lint from the washing machine. The sand filter catches still finer materials, polishes the water and reduces the organic content of the water. The pine bark is separated from the sand by filter cloth. The filtered material and bark will compost over time and should be removed every twelve months and replaced with fresh bark, available from your local garden nursery. If your distribution area is down hill from the filtration tank your engineer should be able to design a distribution system without the use of a pump. If this is not the case you will need a pump and pump well.

The treated water must be distributed into trenches as specified by your engineer. Make sure his calculations of size do not include an allowance for toilet water, which would make them unnecessarily large and expensive.

DIMENSIONS Height 780 mm Length 1025 mm Width 820-910 mm

Nature Clear GWS10 with 45L grease trap Price: $1340.00 excluding sand and gravel ex-Brisbane

Nature Clear GWS10 with 300L grease trap Price: $1395.00 excluding sand and gravel ex-Brisbane

(Sample bags of sand and gravel are supplied)

Nature Clear GWS10 is, as of 2011, only approved in Queensland and only as a primary treatment system. In addition to most Queensland councils, some councils in NSW and Tasmania have also allowed the installation of Nature Clear.

The 2500 litre 120kg polymer holding tank works in the same way as a septic tank, but is smaller than the average septic tank and clarifies only grey water. Solids sink to the bottom whilst fats and grease collect at the surface. The remaining primary treated water flows out.

The tanks are certified to Australian Standards. In some states baffles are required. Nature Loo does not manufacture these tanks but has an arrangement with the manufacturer to supply them at very competitive prices.

DIMENSIONS Height 1550 mm Diameter 1880 mm Capacity 2500 litres

Price: $1000 ex-Brisbane and most major towns

$1100 with baffles (NSW + VIC)