Septic tanks/soakaway systems

Septic tanks receive all waste water from a property. Storm water must be excluded to prevent excessive flows during wet weather.  
 
The design of the septic tank allows liquid to be separated from solids. The solids settle to the floor of the tank whilst fat and grease will float to the surface and form a crust. The liquid waste then drains to a soakaway, where it filters and percolates into the surrounding soil.  
 
As a septic tank relies on a soakaway as part of the filtration process, its effectiveness can be greatly reduced by surrounding ground conditions i.e. high water table, clay soil, contamination. In these problem area’s it may not be possible to install a septic tank and a sewage treatment plant may be required.  
 
Independent Drainage are able to convert existing septic tanks/cess pits into sewage treatment plants avoiding invasive and expensive groundworks.