Sewage treatment plants have mechanical components that means that they need a constant supply of electricity to operate (unlike septic tanks and cesspits). A treatment plant provides "treatment" to the waste which means that the waste water that leaves is cleaner than what leaves a septic tank and is more environmentally friendly.
New legislation that came into effect in January 2020, means that it is illegal to have a septic tank that discharges to a local watercourse. If your current tank does this (or you are unsure) you must upgrade to a treatment plant.
If you are purchasing or selling a property that currently has a septic tank that is discharging into a watercourse, you must upgrade to a treatment plant.
For advice or to book please call 07888 819 600 or email Adam@adamsdrainagesolutions.co.uk