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  WELCOME TO THE WORLD OF SEPTIC TANKS
 
 
Domestic septic systems generally fall into three different catergories, as stipulated by your local council, depending on soil types, available area for absorption and sensitivity of the area. These are usually confirmed by a geotechnican, in accordance with council guidelines.
Septic Tank with absorption trenches.
Septic Tank connected to Collection Wells for approved contractor pumpout.
An onsite domestic wastewater Treatment System. We are agents for ’Bioseptic’ a compact two tank sewage treatment plant, that produces clear odourless water to irrigate your garden.
   

Click the Plan to open a printable PDF
We manufacture a wide range of Septic Tanks and Collection Wells, to suit local Council requirements in different areas for different size dwellings. We are fully accredited with “NSW Department of Health” for our whole product range of septic tanks and collection wells. We are also fully licensed for Product Certification as a Quality Assured Product in line with the Australian StandardsMark.  
All our septic tanks come standard with baffles, sealed lids, inlet and outlet fittings, caps and access lids. We generally try to work in with your drainage contractor or builder as to excavation timing so we can place the tank directly into the prepared hole, ready for backfilling. The hole should be at least 200mm wider than the tank diameter for ease of craning in. The base should be level and screeded with fine soil or sand, and the depth of the hole should allow for the tank to protrude 100mm higher than the surrounding finished ground level to stop surface water runoff entering the tank. As our tanks are watertight they can float like concrete boats (after heavy rain) if the hole is not backfilled or the tank is not filled with water. When backfilling, no sharp rocks or stones should be used so no damage occurs to the tank wall or inlet and outlet pipework. Where pedestrian traffic could fall into the hole, safety barriers should be erected by the builder or contractor around the excavated area, the barrier will be repositioned (if taken down) by us for access/to place the tanks.


Click the Plan to open a printable PDF

 


As a rough guide our Septic Tank range can be used as follows:

  • Tank No 1 - Our ‘3050’ - Capacity 3,050 Litres
    This is our smallest septic tank and can manage up to a 3 bedroom dwelling.

  • Tank No 2 - Our ‘3500’ - Capacity 3,500 Litres
    This tank can adequately manage a 3 to 4 bedroom domestic dwelling with 2 bathrooms.

  • Tank No 3 - Our ‘4600’ - Capacity 4,600 Litres
    This tank can adequately manage larger dwellings.

  • Tank No 4 - Our ‘Squat 3550’ - Capacity 3,550 LitresThis is a shallow tank, as the name suggests (950mm) which can be used in areas of solid rock or high water table areas where standard deeper tanks and not
    suitable.


 
 
Absorption Trenches - If approved by local council, length of absorption trench varies between councils. The absorption trench needs to be located below the septic tank so the greywater can flow into it. Collection Wells - If approved by local council, the greywater flows from the septic tank directly into the collection well (or wells) depending on volume required, Council will advise on minimum holding capacity needed. This greywater is then pumped out on a regular basis by an approved contractor. The installation and guidelines are the same as for septic tanks, the main difference being there is no baffle installed and no outlet.  
     
     
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Phone:
1300 739 337   (02) 64938327
Fax: (02) 64938338
Email:info@aussieprecast.com.au
 
       
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