Your home’s plumbing feeds waste into a septic tank, underground. The tank holds wastewater long enough for natural forces and bacteria to break down solid waste and treat the liquid wastewater. Fats and oils float to the top and form a layer known as scum, while heavier solid materials settle down into the bottom and form a sludge layer.
The main function of Septic Tank Armadale is to keep wastewater from the house from flowing into the drainage field. Heavier solid waste like feces and toilet paper sinks to the bottom of the tank where it forms sludge. Lighter solids like fats, oils, and greases float to the top of the septic tank where they form scum. Anaerobic organisms in the septic system feed on these organic wastewater pollutants, converting them to inert matter that eventually becomes part of the soil and groundwater.
The septic tank has two chambers separated by a half wall. As solid waste enters the tank, it displaces the sludge layer, and the liquid waste flows over the half wall into the second chamber where it is broken down further.
After the septic system breaks down the organic wastewater pollutants, it becomes clear fluid called effluent. It is pumped out of the septic tank into the absorption field through the inlet and outlet tees. These tees extend out of the inlet and outlet pipes below the scum layer so that hydraulic pressure is exerted to push the wastewater up through the sludge layer and into the absorption field.
In order for a septic tank to be effective, it must be properly maintained. This includes regular pumping and inspections. The frequency of these services depends on the size of the tank and the home’s usage. Larger tanks hold more waste and can go longer between pumpings, but it is still necessary to have a consistent maintenance schedule.
To perform a septic tank pumping, the service provider should first make sure that it is safe to enter the tank. This is done by putting on protective gear and checking for dangerous gasses. The service technician then removes the lid and inserts a suction hose into the tank to begin extracting the contents. They will carefully monitor the process to ensure that they are getting all of the sludge out of the tank.
Then the technician will clean the inlet and outlet tees, and clean or replace the effluent filter (if the septic system has one). The last step is to return the septic tank to its original location and cover it. This is to protect the surrounding area from contamination and to prevent future problems with the septic tank or drainage field.
Inspection
When it comes to septic systems, there are many different aspects that must work together in order for them to function properly. If one aspect fails, the entire system can fail and result in sewage back-ups in toilets and drains. The septic tank is an important part of this whole process, and should be regularly inspected. This will ensure that the tank can continue to treat wastewater and not cause a problem in the home or environment.
Inside the septic tank is an anaerobic chamber that contains bacteria and enzymes to break down the solid waste. When sewage enters the tank, the solid waste falls into the first chamber and begins to break down. This will allow liquid waste to flow over the half wall into the second chamber. This will then be pumped out of the tank into the absorption field.
As the wastewater leaves the septic tank, it will enter what is called an absorption field (also known as a lateral field). This is where the water is absorbed into the ground and grass above. It is important to maintain these fields so that the wastewater will not enter into surface water or groundwater.
To do this, the soil in the leach field should be tested to ensure that it will allow the wastewater to percolate. This can be done by drilling about five feet into the soil and observing how well the wastewater seeps. If the soil is not suitable, an alternative septic system may be required.
When working on a septic tank, it is important to always wear safety equipment and have a professional with you. Never enter the tank itself without a self-contained breathing apparatus. There are a lot of dangerous gases that can be found in the tank, and if they build up too much it can lead to asphyxiation. It is also a good idea to have a camera to observe the condition of the tank from outside. It is also important to remember that when pumping the septic tank, it should only be pumped through the large central service hole and not the sanitary tee or baffle inspection ports. Pumping through these ports can cause damage to the septic tank and leach field.
Maintenance
Ideally, you should have a licensed service professional inspect your septic tank on a regular basis and provide you with a record of its condition. The records can indicate whether or when the tank is due for a pumping. Using water wisely by fixing leaky faucets, taking shorter showers and washing full loads of laundry can help reduce the volume of wastewater that your septic system and drainfield must treat. It is also a good idea to keep non-flushable materials out of your septic system. These include cooking oil, non-flushable wipes (such as baby or makeup removal), diapers, cigarette butts, cat litter, and paints.
A septic tank is designed to allow solids to settle, while anaerobic organisms break down organic wastewater pollutants and convert them to inert matter. Heavier solids sink to the bottom of the septic tank and form sludge, while lighter materials such as fats, oils, and greases float to the top and form scum.
Over time, these organisms slowly decompose the sludge and scum, producing liquid effluent that is discharged into the drainage field. The soil and groundwater absorb the effluent, and bacteria further break down any remaining pollutants. The resulting fully-treated effluent is released into the environment.
Septic tanks must be pumped regularly to remove excess solids. If too much sludge builds up, the incoming sewage may not have enough time to settle before it flows into the absorption field and clogs it. This overflow exposes humans and animals to disease-causing microorganisms and pollutes the surrounding water.
It is important to keep clear, concise, and detailed maintenance records for your septic tank. These records can be very helpful if you ever decide to sell your home. They can indicate to prospective buyers that your septic system is well-maintained and ready for a new owner. The EPA provides a wonderful set of mailers, brochures and guides to assist homeowners with maintaining their systems, including information for new homebuyers.
It is a good idea to install a riser, or cover that elevates the septic tank access opening to the ground surface. This makes it easier for septic professionals to access the septic tank and to pump out the sludge and scum.
Installation
When installing a septic tank, it is important to find the right system for the home. There are many different styles and materials from which to choose including steel, concrete, and plastic. It is also a good idea to ask about the strapping that will be installed on the tank as this will keep it from floating in heavy rain after having been pumped.
Once the septic tank is in place it is important to backfill and compact the soil around it. The soil should be compacted in lifts of 12 inches or more on all sides of the tank to prevent ground water from seeping into the septic tank and overfilling it. It is also a good idea to have the installer backfill and compact the soil around the inlet and outlet tees as well as the junction box. The inlet and outlet tees should be installed with 4-inch diameter watertight pipe and should be sloped 1/4 inch per foot toward the drain field to prevent clogs. It is also important to install cleanouts (Figure 2) every 50 feet on the inlet and 100 feet on the outlet pipe of the septic tank.
The effluent from the septic tank is then passed on to the absorption field, which is a series of underground trenches that are designed for the soil conditions and the type of septic system. The septic system and absorption field should be located as far from the house as possible to minimize the risk of sewage leaching onto the ground surface or into the water table.
Bacteria in the septic tank produce gases that must be released to prevent a build-up of pressure that could stop or reverse the flow of wastewater in the septic system. The gases generated include hydrogen sulfide, carbon dioxide, and other volatile organic compounds. To eliminate these gases, the septic tank must be vented. The vent stack is the conventional method for septic tanks to be ventilated.
A proper septic system is essential for homeowners who want to reduce the amount of raw sewage that seeps into the ground surface and into the water tables in their communities. It is also a critical part of protecting public health and the environment.