Septic Tanks

 

 

A Septic Tank is the key component to the disposal of sewerage waste. They are ideal in the case of a property not being connected to a main sewerage pipe. A septic tank system acts as an onsite sewerage facility. The term “septic” refers to the anaerobic bacterial environment that develops in the tank. Once bacteria has developed it decomposes the waste and it is discharged into the tank.Sewerage waste that is not decomposed by the anaerobic digestion process might have to be removed from the Septic tank. If the process is not done, the septic tank fills up and may overflow.Disposing of oils, chemicals or any other non-natural waste is not advised as this may block the septic tank or disturb the bacterial breakdown of the septic sewerage system. Septic tank treatments is an easy and low maintenance way to deal with waste.

 

 

Aqua-mania supplies a high quality polyethelyne rotational moulded septic tank, which means that it is a seamless water tight product that provides a septic system with an effective key component. Where does it all go?? Sanitation has 2 legs of which the one is a dry system and the other is water based. We are all more familiar with the water based systems such as the city sewerage system. So what to do with an area where there is no connection possibility to the city sewerage system? The options are either a septic system or sewerage treatment plants such as a 3section sewerage treatment plant, a small footprint plant or a conservation tank. Septic tanks are either made out of concrete, or a LLDPE manufactured tank is simply installed.
About Digester Tanks: A Digester Tank is a key component of the septic system, a small scale sewerage treatment system common in areas with no connection to main sewerage pipes. Periodic preventive maintenance is required to remove the irreducible solids which settle and gradually fill the tank, reducing its efficiency. A properly maintained system can last for decades, possibly a lifetime.

 

What to know about LLDPE / Polyethylene Dome tank:
Chemical resistant
Maximum persons per unit
Lid to be filled with concrete
Easy to handle and to install
Easy to clean
Outlet pipe – 50 mm
Inlet pipe – 110 mm
 

AQUA-MANIA SEPTIC TANK INSTALLATION GUIDELINE

1. FOUNDATION AND SEPTIC TANK INSTALLATION
Excavate the correct size hole in which to insert the tank. A 1:6 river sand and cement mix is required to cover the bottom which
must be level and smooth. Make sure no solid objects are protruding from cement and sand mix. Lower the tank into the hole and
bed the tank properly, by gently rocking it backwards and forwards in the cement mix making sure the tank is level. Fill the tank
with water to just below outlet (Do not overfill) This tank is designed not to give in to pressure as other tanks such as plastic
rectangular tanks.

2. CONNECTING
Connect the toilet outlet to the septic tank inlet with a 110mm PVC pipe, connect the overflow or outlet to the Fishbone soak away or a
French drain, making sure that it is not too close to household underground water supplies, e.g. borehole. When joining pipes to the septic tank, it is easily done by using a water soap mix and ramming the required pipes home.

 

3. BACKFILLING
Backfill the sides of the hole using material free of large lumps and compact lightly to prevent later subsidence. The backfill material
should preferably be sandy and slightly moist. For deep manholes where a high water table is anticipated, backfill material must consist of a soil crete mix of 5% cement and 95% selected granular material. Do not compact on top of tank, mark or provide an access box to the manhole lid for future desludging.

 

4. ACTIVATION OF TANK
The tank can either be activated by using an activator in the form of enzymes or alternatively placing a dead chicken into the tank.

 

5. HOW THE TANK WORKS
When you flush the toilet, the content collects in the tank, therefore any solid waste product will float on the water. The bacteria from the activator will dissolve the solid waste products and produce an almost clear water which settles at the bottom of the tank, which then flows out of the overflow and into the Fishbone soak away or a French drain.

 

The size of the soakaway will be dependant on the following factors,

1. The size of the property and the number of residents it is serving.
2. Environmental factors of the disposable field. Common septic tank soakaways are constructed via long trench lines filled with a clean stone and have a slotted or holed distribution pipe. These trenches can be interconnected (a looped system), a simple long trench, a herring bone/fishbone soakaway layout or a large filled pit. Any soakaway is very much dependant on the sub soil permeability. A porosity test can be carried out to determine the size of the soakaway required. The lower the sub soil permeability the bigger/longer a soakaway system needs to be. Another important factor in the operation of a soakaway is the level of the natural water table in the sub soil. If the water table rises above the base of the soakaway the capacity to function is greatly reduced. A septic tank soakaway is not the same as a rain water soakaway. Septic tank soakaways disperse slow flows over a 24 hour period. Rain water soakaways disperse high flows over short periods i.e. during heavy showers.