Domestic Effluent Tank Emptying Service

Unlike cesspits, septic tanks are designed to allow liquors to flow through the tank and enter the surrounding land or water course via a soak-a-way without causing damage to the environment. Waste waters enter the tank and the flow is reduced through a series of baffles allowing the solids to sink to the bottom. Additionally, smaller particles float to the surface creating a scum. By holding the water in the system, suspended solids are removed and much of the sludge decomposes through natural aerobic and anaerobic processes. In turn the semi-treated liquor is allowed to exit the tank and leach to nearby land via a soak-a-way system.

Emptying Frequency

There is no hard and fast rule, but for a septic tank to work efficiently the sludge (solids) needs to be removed on a regular basis. The frequency of “de-sludging” will depend on size of the property and the number of occupants. However, most will require emptying at least once a year to maximise the available void.

Do’s & Don’ts

• Don’t dispose of: commercial chemicals, medicines, disposable nappies, incontinence pads or feminine hygiene products down the wc.
• Don’t use large quantities of biological cleaning agents and bleach.
• Don’t hose down the baffles and media areas of the tank. It is important for the bacterial media to remain and restart the biological process.


• Do have the tank “de-sludged” regularly.
• Do use biologically friendly products.
• Do take advantage of our Regular Service Discount Scheme rates.