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Top Ten Sewage Treatment Plant Problems and how to fix them.

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Sewage Treatment Plant

Signs that your SEWAGE TREATMENT PLANT isn’t working.

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A properly installed sewage treatment plant should run smoothly. It should require very little input from the owner and provide many years of trouble-free service. The tank will require annual servicing as a legal requirement and to preserve the systems guarantee. The Tank will also need to be emptied at least annually. You should also avoid flushing or disposing of any nasty products such as tampons in line with the guidelines of your system.

With the help of Homeseptic wastewater experts to install your sewage treatment plant and carry out periodic maintenance and repair. Your plant will offer an effective alternative to mains sewerage. However, whether parts get worn or the system has been improperly used, problems can arise. Here we look at some common sewage treatment plant issues and the signs that something isn’t working as it should.


Sewerage treatment plants require annual maintenance by law. Ensuring this is done with your own system will reduce the chances of costly problems. This will also ensure your systems guarantee is not made invalid and increase the lifespan of your system.

Soakaway problems

All sewerage treatment plants have a soakaway for the effective and safe dispersal of effluent into the surrounding ground. If the soakaway has a problem your sewage system will not work properly. You will also have signs and symptoms such as foul smells and the boggy waterlogged ground around the soakaway area.

Too much effluent (Overloading)

Sewage treatment plant overloading will inevitably lead to problems with the processing of wastewater and possible long-term damage. The main sign of overloading your plant is poor-quality effluent. This is because your tank is having to work too quickly to avoid backing up the system. The effluent will become visibly cloudy and grey. This may lead to you failing to meet environmental standards and potentially end up facing a fine or legal proceeding.

If you have recently added additional discharge volume to the system then this could become a problem. In the event that you are going to increase the number of people using your sewerage system, you should contact your installer to check if the system can cope with the extra discharge.

Alternatively, you may have surface water getting into your system. This kind of water should not be getting into your sewage treatment plant and you will need to divert it. Another sign of this is the pump running a lot or constantly.

Sewage pump or blower failing to turn on

If the pump or blower isn’t turning on, your system’s efficiency will drop and the plant may even cease to function. An alarm on your control panel should notify you if something has gone wrong. There are several possible causes, including a tripped breaker, electricity supply issues, defective equipment, and overheating. If you reset the breaker and ensure there is no reason the blower would overheat. For example, a really high ambient temperature, then you should call us straight away.

The Blower operating but not pumping air

Your system’s blower controls airflow to your plant and aeration for the aerobic breakdown of waste. If the blower isn’t delivering air correctly, efficiency can drop and the bacteria which break down waste in aerobic processing can die off. This could be occurring because a filter is blocked, the blower has become damaged, or the power supply is insufficient. A Homeseptic expert will be able to troubleshoot this issue and offer a swift fix.

The is Pump operating but does not deliver effluent

If the pump in the sewage system is running but no effluent is being produced at the outflow then a problem has developed. A backup in the system will occur if this is not dealt with promptly. Common causes of this problem are blockages or a foreign object being caught in the impellers. A Homeseptic wastewater expert will be able to clear obstructions and carry out a thorough check.

The Blower stops and starts erratically

If your blower seems to be running in an unreliable erratic manner, your plant won’t operate smoothly and efficiently. An inconsistent blower is often due to overheating – it should turn itself off until it cools down. See if the air supply vent is blocked, clearing it if so, and try and keep the system protected from direct sunlight. Alternatively, a filter may need replacing, parts may be damaged, or there could be an electrical fault. A Homeseptic wastewater engineer will be able to solve this problem for you.

The pump stops and starts

An inconsistent pump can be a problem for clearing away your treated effluent. If your system isn’t being used, it could be that it’s run dry and stopped. Other sources of the problem could be a clogged impeller or a stuck or damaged float. These should be checked out by a Homeseptic wastewater treatment system expert.

Yours is Alarm sounding

Your sewage treatment plant should be fitted with an alarm that will sound if a problem arises. For any issues with your blower or pump, the alarm will sound to alert you to the problem, ensuring you can get in touch with a professional as soon as possible.  This will ensure the issue can get rectified swiftly. Once you’ve contacted a professional, you can mute the alarm if it is becoming annoying. You should not, however, ignore a sounding alarm.

Unpleasant Odours

Unpleasant odours around your property can be troubling and you should try to find their source. Ineffective pipework in your home – from U-bends to soil and vent pipes – could be to blame. If the foul smell is outside, close by to your sewage treatment plant, this is likely a sign something isn’t right. Pipework connecting to the tank could be blocked, chemicals put down your drains could have killed off the necessary plant bacteria, or air flow could be ineffective. A Homeseptic wastewater system expert will be able to source this issue for you and offer a solution.

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