08/12/2019
What are the reasons a septic tank might fail?
1.Piping from the building connected to the tank is blocked
When this occurs, drains drain very slowly (this may be more apparent on lower levels of the building) or in extreme cases, drains may stop working completely. Clogged piping can be prevented by only flushing human waste and toilet paper and by having your system inspected annually.
2. Inlet baffle to tank is blocked
This failure is very similar to when the inlet pipe from the building to the tank is clogged.
Again, this can easily be avoided by only flushing human waste and toilet paper into the system. In the case of attempting to unclog the pipe extra care must be taken to not damage any septic system components, which is why a professional should always be contacted in the case of failure.
3. Effluent filter/outlet baffle is blocked
This type of failure usually results in sewage backing up into the building or even surfacing near the tank. This can also symbolise that the tank is receiving too much water in short periods of time. If the system contains an effluent filter, in the case of failure it is to be cleaned or replaced; if there is not an effluent filter in the system the tank will need be pumped to allow inspected and remove the clog.
4. Drain field has failed
When a drain field fails- or is saturated with water- sewage may back up into the building. Soggy, wet areas will be noticeable above the drain field as well as bright, green spongy grass above the tank area. This may mean that the system was operated incorrectly and as a result excessive amounts of solid material made it to the drain field causing it to fail prematurely. Or the system may have failed due to existing for many years and having no more capacity to accept waste. This can be rectified by drying out the drain field and rehabilitating it. The best thing to do is to contact a professional to assess the situation and identify the required actions.
How to prevent failure
Routine maintenance carried out by a professional will ensure proper operation and longevity of your septic system. If you are looking to install a new septic system it is also imperative to contact a professional to ensure the system has been designed, sited and installed correctly.
Septic systems and pumps should be serviced and inspected on an annual basis.
You can prevent failure of the system by avoiding excess water use, and monitoring what is put down drains and flushed into the system
