These are the simplest, although most expensive, of all the systems – it’s just an underground holding tank that needs to be emptied more frequently. On average, cesspits need emptying every 6-12 months. What you need to know about your system! Make you know which of these you have – a septic tank, package sewage treatment plant or cesspit Make sure you know where it is Check if you share it with neighbours Find out where the treated liquid goes Check if there are any potential risks to nearby watercourses, boreholes or springs used for drinking water
It’s worth finding a specialist Environment Agency registered contractor or company that deals with the maintenance of treatment plants and septic tanks. You’ll be able to find local professionals online or in the Local papers.