Septic systems can be a cost-effective option for properties without access to the city sewer system, but installation is not always a straightforward process. Not only do you need to choose the correct type of septic tank for your project, but you also need to consider its placement on the property. Improper septic system installation can lead to costly failures, making it crucial to get it right the first time.
When it comes to installing your new septic tank and associated components, there are three essential factors to consider: capacity requirements, lot size, and ground conditions. Keep reading to learn how each of these three elements can impact your project.
1. Capacity Requirements
Septic tank sizing tends to be relatively straightforward. Your contractor will estimate your wastewater flow rate based on the number of occupants on the property or the number of bedrooms. You want to choose a tank size appropriate for your needs, since a tank that's too large may be inefficient, while a tank that's too small will require frequent cleaning.
In most cases, you'll want to stick as close to this sizing as possible to ensure that your system operates efficiently and without high maintenance costs. Unfortunately, other considerations on your particular project may require you to select a tank that does not precisely match your needs.
2. Lot Size
Lot size will usually be the largest factor that impacts the design of your septic system. Depending on your local building codes, you will need to locate your tank and leaching field a certain distance from your home, well (if present), groundwater sources, and other features on your lot. For small lots, these clearance distance restrictions can often make placement challenging.
It may be necessary to reduce the size of the septic tank or drainfield for very small lots. In these cases, you will want to be sure that your reduced capacity does not significantly impact the ability of the system to deal with your home's wastewater flow. You may also be able to choose a deeper tank with a similar volume and smaller footprint.
3. Ground Conditions
Finally, ground conditions may dictate the placement of both your tank and drainfield. Hard rock layers near the surface may force you to use a more shallow tank or perform costly excavation work. Likewise, a soil percolation test may determine that not all sections of your lot are suitable for drainfield installation. These considerations can drastically impact both the size and location of your tank.
When installing a new septic system on any property, it's essential to perform a detailed site survey and inspection. Your septic tank installer can then use this information to help you design the perfect septic system for your lot.
For more information, contact a septic tank installation company.