Here are a few tell tale signs your home might need a better septic tank solution.
If your home isn’t connected to mains drainage, you’re likely to be relying on a septic tank or sewage treatment plant to deal with your household wastewater. These systems are designed to last for many years, quietly working away in the background. However, as time goes on, even the most reliable systems can begin to struggle. Changes in how your home is used, new environmental rules, or simple wear and tear can all mean that your existing setup is no longer suitable.
At Mantair, we’ve been working with septic tanks and off-mains drainage systems since 1987; helping homeowners to identify when a system is reaching its limits and providing the right solution for long-term peace of mind.
Here are the key warning signs your home might need a better septic tank solution and what you can do about them.
Frequent Or Persistent Blockages
A properly functioning septic tank should be something that you rarely have to think about. However, if you’re noticing slow drains, gurgling toilets or unpleasant smells coming from sinks or waste pipes, these are usually signs that the system isn’t operating as it should be.
These problems can occur when solids begin escaping from the tank into the soakaway, or when the soakaway itself has become clogged and can no longer disperse water effectively. This can happen gradually as the system ages, or more quickly if the tank is too small for the household’s current usage, or hasn’t been properly maintained.
At Mantair, we carry out full inspections of septic tanks and soakaways to pinpoint the cause. In some cases, a minor repair, maintenance or emptying might be enough; in others, a replacement tank or conversion to a sewage treatment plant may be the most practical long-term fix.
Issues With The Soakaway Or Drainage Field
The soakaway or drainage field is a crucial part of any septic system, allowing treated effluent (liquid wastewater) to soak into the soil. When the soakaway or drainage field stops working correctly, problems can appear quickly above ground. You might notice effluent surfacing after rainfall, or water pooling where it shouldn’t be, leading to areas of grass that appear unusually green or spongy.
Older soakaways or drainage fields were often built to past standards that didn’t anticipate modern water use from dishwashers, power showers and washing machines, all of which can contribute more flow than the older systems were designed for. If the soakaway or drainage field becomes overloaded or blocked, it can no longer cope with demand.
A modern sewage treatment plant or conversion unit can solve this problem by improving the quality of effluent leaving the tank, making it cleaner and easier to disperse without damaging the surrounding land.
Your Septic Tank Is No Longer Compliant
In 2015 regulations regarding septic tanks became much stricter. The Environment Agency’s General Binding Rules state that septic tanks can no longer discharge untreated effluent into ditches, streams or any form of surface water. If your system does this, it’s actually an offence under the Public Health and Water Resources Acts and you could potentially be prosecuted.
It’s important to check whether your septic tank discharges to a soakaway, drainage field or a waterway. If it’s the latter, you’ll need to either install a new treatment plant or convert your existing tank so that the water leaving it is properly treated before it’s discharged. In some cases, you may also need to obtain a discharge permit from the Environment Agency.
Mantair’s conversion unit is designed specifically for this situation. It will fit inside most existing septic tanks, without the need for disruptive excavations, and convert them into effective sewage treatment systems that are capable of meeting today’s discharge standards.
Your Septic Tank Is Outdated
As with most household systems, septic tanks don’t last forever. Older tanks, especially those made from brick or concrete, can develop cracks, leaks or structural weaknesses over time. Some may not have baffles (a divider that controls wastewater flow) or dip pipes (directs the flow and retains solids), which are both vital for a tank, soakaway and drainage field’s health.
If your property has been extended, converted or now houses more people than it once did, your septic tank may simply be too small. An undersized or ageing system will struggle to process the extra volume of wastewater, leading to more frequent emptying and a higher risk of failure.
Rather than continuing to patch up an outdated tank, it’s often more cost-effective to invest in a modern solution. Mantair’s team can assess your existing system and advise whether a new sewage treatment plant or conversion unit would provide a more reliable and compliant setup.
More Frequent Emptying
A septic tank that requires emptying several times a year may be a sign of a deeper problem. It could mean that solids aren’t settling properly, that the soakaway/drainage field is failing or that the tank is undersized for current demand.
Whilst regular emptying is essential, excessive maintenance costs often indicate that your system is no longer operating efficiently. Upgrading to a modern treatment plant can reduce the frequency of servicing; improving performance and reducing running costs.
Mantair’s installations are designed to be cost-effective in the long term, helping homeowners to avoid the cycle of repeated emptying and repairs.
Strong Odours
Persistent smells around the tank area or garden should never be ignored as they’re usually a sign that untreated wastewater is escaping from the system. This isn’t just unpleasant; it’s also a potential health risk and environmental concern. Immediate professional attention is essential to identify the cause and prevent further contamination. The safest thing to do is to contact Mantair, who can send highly-experienced engineers to carry out a site inspection and determine whether repair, replacement or conversion is the most appropriate step.
What You Can Do
If you suspect your system is struggling, a few practical steps can make a big difference:
- Book a full inspection: This will assess the condition of your tank, pipework and soakaway/drainage field.
- Check your paperwork: To confirm the original installation date and whether your system is compliant with current regulations.
- Monitor your water use: Note any changes in occupancy or appliances that may have increased the load on your system.
- Avoid flushing non-biodegradable items: We also recommend limiting the use of harsh chemicals, which can upset the natural bacteria in your tank.
- Seek expert advice early: Small problems caught early can prevent expensive replacements later on.
Why Homeowners Choose Mantair
For almost 40 years Mantair has built a strong reputation across the UK for solving septic tank problems and upgrading off-mains drainage systems. From septic tank conversions and soakaway/drainage field replacements to the installation of modern sewage treatment plants, we provide a complete end-to-end service; from the first survey through to aftercare.
If your septic tank is emitting unpleasant odours or you can see standing water pooling, it may be time to review your current setup. Contact the Mantair team to find out whether a conversion or new treatment plant could offer a better solution for your home.
Call 01255 853890 or email enquiries@mantair.com and enjoy peace of mind today.