5 Questions to ask about managing a septic tank or cesspit in your home

Are you thinking of moving into a property that has a septic tank or a cesspit? The concept of not being connected to the public waste water system may be a new one to you. After all, it’s not something we normally need to think about – you flush and it disappears, no?

However, in remote or rural parts of the country, septic tanks and cesspits are routinely used to collect waste water from a property. This includes water from showers and sinks, waste water from dishwashers and washing machines and, of course, sewage from the toilet.

Rather than automatically disappearing into the public sewer, the contents from a septic tank or cesspit emptying process needed to be done periodically – doing nothing is not an option.  There’s no reason to be worried or scared about this kind of system, but it is a good idea to get familiar with how it all works as you move into your new home.

  1. How does a septic tank work?

Typically a large rectangular box made from brick, concrete or stone – or it could be a bottle shaped plastic tank – buried underground not far from the building, the waste water is sent from the tank’s outlet pipe to a soakaway, drainage field or stream.

It’s a network of perforated pipes that allow the waste water to percolate safely into the ground without any polluting the environment. The septic tank itself doesn’t actually treat the waste, it merely separates it into three layers: sludge (bottom layer), scum (top layer) and waste water. The waste water is piped into the soakaway, leaving the more solid contents in the tank.

https://youtu.be/eEswZusP__g

  1. What’s the difference between a septic tank and a cesspit?

A cesspit is a simple sealed tank that has a manhole cover to (you can buy manhole covers at EasyMerchant) give access for waste collection. While the purpose of both types of underground container is to collect waste water and sewage from your house, there is no processing or any kind of treatment involved with cesspits.

Whichever type of tank you have on your land, it’s important to keep the system as ‘clean’ as possible. Flushing things such as sanitary items, baby wipes, food waste, fat, grease, coffee grounds etc away can easily cause blockages – with potentially very unpleasant consequences.

In addition, it is recommended that you use environmentally friendly household products rather than biological cleaners and bleach in an effort to help the biological decomposition process in the tank. See this blog post for a comparison between a septic tank and cesspit.

  1. What happens if the tank doesn’t get emptied?

The contents of your septic tank or cesspit will accumulate over time and need emptying by a professional waste company on a regular basis. There are several symptoms to indicate that emptying is overdue, including

  • Toilets taking longer to flush
  • Gurgling sounds in your plumbing
  • Waste backing up
  • (for septic tanks) Solid waste escaping into the soakaway, causing bad odour and pollution

Obviously, you want to avoid this at all cost.

  1. How often should you have your septic tank or cesspit emptied?

As a rule of thumb, once a year is a good frequency to start with. Once you have settled into your home, you may find quarterly that the frequency for emptying may need to be adjusted – realistically speaking, it could be anything from monthly to or annually.

The tank will need emptying before it is full, but when that is depends on how quickly it fills up. This, in turn, depends on the on the size of your property, the number of occupants that use the facilities, and with which frequency.

It also depends on the actual size of the septic tank or cesspit. It is possible that, say, if a home has been extended, the tank may not have been upgraded to accommodate the extra waste. It doesn’t take a brain surgeon to work out that a larger tank that is underused will need emptying less frequently than a tank that’s too small and overused!

  1. How do you empty a cesspit or septic tank?

The good news is that emptying your sewage and waste water not a DIY job – you won’t have to do it! Contact a local waste management company who will send out one of their tankers with a long flexible hose. The tanker operator will insert the hose into the tank and drain out the contents, take it away and dispose of it safely.

Make sure that the company emptying the tank is on the Environment Agency’s Register of Waste Carriers, Brokers and Dealers and has the correct waste disposal licence.

 

EAN Content

Content shared by this account is either news shared free by third parties or sponsored (paid for) content from third parties. Please be advised that links to third party websites are not endorsed by Estate Agent Networking - Please do your own research before committing to any third party business promoted on our website. As an Amazon Associate, I earn from qualifying purchases.

You May Also Enjoy

Letting Agent Talk

Advice for London landlords and tenants ahead of the Renters’ Rights Act implementation

Phase one of the Renters’ Rights Act (RRA) comes into force on 1 May 2026, and with it brings about the most significant overhaul of the private rental sector in a generation. While the Act will see new responsibilities introduced, it will also offer an opportunity for landlords to strengthen their practices with a clear…
Read More
Estate Agent Talk

Budget-friendly ways to boost your chances of a successful spring house sale

With many households feeling the pressure of changing global economic conditions, tighter finances, and the high costs associated with moving, such as Stamp Duty, legal fees and removals, selling a home can currently feel like challenge. At the same time, spring traditionally brings a surge in buyer activity. Longer days and better weather tend to encourage more viewings,…
Read More
Letting Agent Talk

Expert Reacts To Renters’ Rights Act Ahead of Changes This Week

The Renters’ Rights Act comes into force this week (1st May), introducing major reforms to tenancy structures, eviction rules, and tenant protections across England. The changes will reshape how landlords manage properties and how tenants experience private renting, with significant implications for student private rentals and the wider rental market. Ahead of implementation, Owen Dixon,…
Read More
Breaking News

52% of buyers are cash purchasers – and they’re ready to move

New research from LRG reveals that sellers entering the spring market are meeting an unusually large pool of cash-ready buyers, many of whom aren’t constrained by affordability, but by a lack of suitable homes. According to LRG’s Spring 2026 Sales Report, based on a survey of 307 buyers and sellers across England and Wales, more than…
Read More
for sale sign london
Breaking News

Landlords sell up as Renters’ Rights prove final straw

Leading Kent and London law firm Thackray Williams have had a wave of last-minute instructions from landlords looking to sell their portfolios ahead of the Renters’ Rights Act coming into force this Friday. The litigation team has been instructed to seek possession by landlords wishing to sell their entire buy-to-let portfolios, as well as last-minute…
Read More
Breaking News

Breaking Property News 27/4/26

Daily bite-sized proptech and property news in partnership with Proptech-X. Will AI change the way we search on property portals? Thought Leadership by Andrew Stanton, CEO Proptech-PR Rightmove: the UK’s most profitable proptech Rightmove is widely seen as the UK’s most profitable proptech, generating £300m+ annually with operating margins around 70%. Even with slight recent…
Read More