Specialists in sewage treatment plant installation.
A Septic Tank is the most basic form of waste water treatment allowed by the Environment Agency in England.
A Septic Tank is simply one or more underground chambers constructed, usually of brick or fibreglass, that separates and retains foul solids, allowing the waste water to filter into a drainage field. This basic process fundamentally relies on the property having both free draining soil and sufficient level ground to site a drainage field. There is some basic treatment of the waste in the septic tank via an anaerobic process that reduces some of the solids and organics, but the treatment efficiency is only moderate and relies on a drainage field for further treatment.
A septic tank cannot discharge directly into a watercourse, or a soakaway without a permit from the Environment Agency. However, a permit is unlikely to be granted due to the risk of ground pollution. Septic tanks, when working correctly, require annual emptying to remove the build-up of solids and help prevent contamination of the Drainage Field.
SEPTIC TANK SERVICE
The septic tank is a highly popular and traditional sewage treatment process for properties without a mains sewer connection. By effectively separating solid and liquid waste whilst ensuring rain water cannot enter, they are able to manage levels by allowing liquids to safely seep into the surrounding earth via a soakaway or drainage field.
It's a simple process, but is one that requires regular maintenance as well as possible repairs and replacement. Independent Drainage and our team of professional drainage experts have extensive experience in dealing with all aspects of sewage treatment, not least septic tank problems and sewage treatment systems installation.
SEPTIC TANK ISSUES?
If you've got a problem such overflowing or clogging, you will no doubt be keen to get it fixed quickly. This could be caused by a fault in the tank, soakaway or by improper maintenance. Regardless of the cause, Independent Drainage can help you to repair it promptly.
SEPTIC TANK PROBLEMS
THE MOST COMMON PROBLEMS EXPERIENCED WITH SEPTIC TANKS ARE:
DRAINAGE FIELD FAILURE
This can occur from a baffle or T pipe failure allowing solids to enter and contaminate either the pipework or filtration media. The results of a failure within the drainage field can cause flooding of the septic tank and connecting drainage, resulting in a blocked toilet or water escaping from a manhole or gully.
Occasionally, waste water can come to surface above the drainage field, leaving either foul smelling water or a weedy or marshy area.
SEPTIC TANK DAMAGE
When septic tanks are poorly installed without the correct concrete surround or when they have been placed too close to large trees, damage to the walls of the tank can occur. This damage can be detrimental to the process of efficient drainage because it either allows in, ground or surface water, or allows the tanks contents to leak out causing ground pollution.
SEPTIC TANK ODOURS
Sometimes when a septic tank has failed, the tank and surrounding area can become smelly, this is not just unpleasant it indicates a problem with the tank itself.
SEPTIC TANK EMPTYING
The need to empty a septic tank more than once a year for routine maintenance; due to overfilling, excessive smells, flooding above the drainage field or a blocked toilet, is not only expensive but is a clear indication of a problem.
LACK OF MAINTENANCE
Ensuring that a septic tank is emptied annually is important. The lack of desludging can allow fats and grease to build up on the baffles or T-pipes causing them to collapse under the additional weight, this too then can cause solids to flow into the drainage field.
In some circumstances the discharge from a septic tank has been connected directly into a watercourse/ditch. New laws in England state that any new or existing connection from a Septic Tank to a watercourse is illegal as it will be causing pollution.
SEPTIC TANK DISCHARGE
You cannot use a soakaway, well or borehole for discharging effluent to ground from a septic tank. Instead you must either upgrade to a drainage field or apply for a permit from the Environment Agency, however, this is unlikely to be granted due to the risk of pollution.
SEPTIC TANKS CAPACITY
Your septic tank must be large enough to handle the maximum amount of sewage it will need to treat. If the property size has been increased without upgrading the septic tank and drainage field, the system may not work effectively and could block or cause pollution.
Due to the use of modern appliances, such as dishwashers and washing machines, it is not unusual to find existing systems in older properties are undersized, resulting in pollution.
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