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The UK General Binding Rules 2020 (GBR 2020) is a set of regulations that came into effect on 1st January 2020, which apply to anyone who owns, operates, or uses a septic tank or small sewage treatment plant (STP) in England. These rules are designed to protect the environment and human health by ensuring that domestic wastewater is treated and disposed of safely and effectively. What are the implications of the GBR 2020 for septic tanks and why are treatment plants a better alternative?
The GBR 2020 requires all old tanks that discharge into surface water to be upgraded or undergo a septic tank conversion by 1st January 2020 or when the property is sold, whichever is sooner. Septic tanks that discharge into the ground are exempt from this requirement but must still comply with the general binding rules. These rules include:
Septic tanks can be effective at treating domestic wastewater, but they have limitations. They only provide primary treatment, which means that the wastewater is only partially treated before it is discharged. This can result in the pollution of the environment and cause harm to human health. Furthermore, septic tanks require regular maintenance and emptying, which can be expensive and inconvenient.
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A modern replacement to septic tanks, sewage treatment plants are much cleaner and environmentally friendly. They can separate liquid and solid waste, reducing their impact on the local environment.

Traditional septic tanks are the most common choice and work by separating solids and scum from wastewater. They are generally affordable, easier to install, and require less maintenance, making them ideal for most homeowners.

When your septic tank system breaks, it’s not just a nuisance. It’s a potential threat to your home, health, and the environment. Whether it's a blockage, overflow, or leak, professional help ensures the job gets done right.

When a tank gets too full, it can't properly filter the waste, leading to blockages and backups. These failures often result in extensive and costly repairs, which can easily be avoided with timely emptying of your septic tank.

Regular cleaning extends the lifespan of your septic system. By sticking to a routine cleaning schedule, you reduce the need for costly repairs and replacements. The accumulation of sludge and scum is kept in check, which means fewer mechanical failures and a longer-lasting system.

All old tanks that discharge into surface water must be upgraded or undergo a septic tank conversion by 1st January 2020 or when the property is sold. Septic tanks that discharge into the ground are exempt from this requirement but must still comply with the general binding rules.
For a fast, friendly, no-obligation quote or for 24/7 emergency help, contact our expert team now.
Sewage treatment plants are a better alternative to septic tanks because they provide more effective treatment of domestic wastewater. They use a combination of mechanical, biological, and chemical processes to treat wastewater to a higher standard than a septic tank. The treated water can then be safely discharged into the environment, meeting the relevant environmental standards. Treatment plants are also more flexible than septic tanks. They can be installed in a wider range of locations, including areas with high water tables, and can be adapted to suit the specific needs of a property. Furthermore, septic tank maintenance is required more often making treatment plants a more cost-effective waste solution.
The UK General Binding Rules 2020 have implications for anyone who owns, operates, or uses a septic tank or small sewage treatment plant.
Septic tanks that discharge into surface water must be upgraded or replaced by a sewage treatment plant to comply with the rules.
Treatment plants are a better alternative to septic tanks because they provide more effective treatment of domestic wastewater and require less maintenance.
If you have any questions about the GBR 2020 or the installation of a sewage treatment plant, please contact our friendly team today.
Cotswold Drainage is CHAS-approved for health and safety, a member of Constructionline and has 25+ years of experience. You can trust us to maintain and unblock your drainage systems across commercial and domestic properties with minimal disruption, utilising the latest high-tech equipment as well as follow-up visits during and after your 6-month warranty.