It is easy to tell the difference between a septic tank and a waste treatment plant since septic tanks are usually smaller. Their applications are mostly in areas where sewerage lines are not installed, such as the countryside.
There are many options when deciding on what septic tank to install. Most people go for the absorption field system due to its easy application. In an absorption field system, a drain that carries the waste to a buried septic tank is installed. The waste in the tank decants, where the oil-based residue floats to the top, and the clear recyclable layer of wastewater sips into the drain. The water passes through the soil, where contaminating agents are absorbed.
There is no ideal size of a septic tank since the size depends on the amount of waste a home has to dispose of. Bigger houses with more people generally need bigger septic tanks.
With many people opting for DIY solutions in everyday installations, it is not advisable for septic tank installations. Due to the high risks posed in the case a septic installation fails, it is advisable to hire a professional.
Many aspects determine the cost of building a septic tank, such as soil quality and location of installation, but with all factors constant, a tank for a three-bedroom house can cost an estimate of between $1,500 to $4,000.
To get a clear cost estimate of the whole project, it is advisable to get a bid from various experts. Below is a summary of the various points which will give you a rough estimate of the cost. The figures are based on the cost of a one-family house septic tank installation.
The septic tank
Many materials can be used to construct a septic tank, and though most people opt for concrete, they can also be made of steel, fiberglass, or polythene.
The cost for a concrete tank, capable of handling 1,000 gallons of waste for a three-bedroom house is estimated to cost between $1,000 to $6,000.
Gravel drains are dug to a width of 36 inches, and they hold gravel measuring up to 12 inches. The depth of the trench can be as shallow as 12 inches, or as deep as 36 inches from the ground. Pipes with holes are run through the drain, and the as the wastewater sips out of the perforations, it can trickle through the little spaces between the gravel particles.
A typical gravel trench with a capacity of 1 ton of gravel is expected to cost anywhere between $12 to $30. You can use a local handyman to complete this job.
Pipes are an essential part of the installation since they are what carry the wastewater through the system, up to the drainage field. The pipes are estimated to costbetween $65 to $80 for the perforated PVC pipes measuring 100 feet.
A riser stands above the ground and makes it easier for you to do maintenance tasks on the septic tank system. A concrete made riser costs at approximately $100, but the cost will fluctuate depending on the size.
Depending on the area you live in, you may need to pay for a permit from the local jurisdiction. The permit cost includes constant inspection from the authority’s experts, ensuring that your project is risk-free.
Design and installation
Design and installation consist of many tasks that are necessary before deciding on the type of tank to install. Soil experts usually do a soil test, which can cost you between $100 and $400. This test will help determine the soil type and it’s absorption abilities.
It is essential to contact sanitation experts, so they can help identify the best septic installation experts. Most installation experts have different costs, but you can expect the quotes to be in the region of $1,500 to $4,000.
Since septic tanks are a sanitation installation, there is a need to carry out regular maintenance checks. These checks ensure that your tanks are in the best working condition. It is also a statutory requirement that owners of septic tanks have experts carry out these tasks, and they are mostly advised to be undertaken ever 3 to 5 years.