Septic tank sewage separates naturally leaving solids to settle in the bottom, liquids passing through in the middle and fats forming a layer on top.
The build up of sludge waste from the solids on the bottom of the tank has to be removed at regular intervals to allow regular functionality.
Septic tanks are cleaned by removing the material left at the bottom through a specialist suction pump. Tanks are then cleansed using a combination of industry specific cleaning materials and hydro-jet technology. All septic tank works should be carried out by a registered specialist waste handler to avoid pollution.
New Septic Tank legislation
Previously, wastewater from a septic tank has been allowed to run straight into a surface waterway, such as a river or stream. However the rules changed in January 2015:
• From 1 January 2015, new installations of private sewer systems (septic tanks) must not discharge directly to a watercourse.
• By 1 January 2020, all existing septic tank installations must either output to a drainage field (built to relevant BS standards), or be replaced by a sewage treatment plant (also known as a package treatment plant).
• But, if you plan to sell the property before 1 January 2020, you have to carry out the replacement or create a drainage field before you sell.