Installing an infiltrator septic tank represents a significant undertaking for homeowners seeking an effective wastewater management solution. These systems, designed for ease of handling and environmental responsibility, require careful planning and adherence to local regulations. This article provides a comprehensive overview of the installation process for Infiltrator IM-Series tanks, with a particular focus on assessing and addressing potential buoyancy concerns. The information presented is intended for homeowners, DIY enthusiasts, and professionals involved in septic system installation and maintenance.
Understanding Infiltrator Systems
Infiltrator septic tanks differ from traditional systems through their innovative technology designed to enhance wastewater treatment and dispersal. The systems are lightweight, simplifying the installation process, but require a thorough understanding of their components and proper execution to realize their environmental benefits. A key aspect of successful installation is adherence to local regulations and guidelines. The provided documentation highlights the importance of a step-by-step approach, covering site selection, excavation, and final connections. The installation process includes understanding the system’s components, preparing the site, and following manufacturer instructions for assembly and connection.
Site Preparation and Permitting
Prior to commencing installation, obtaining the necessary permits is crucial. These permits ensure compliance with local, state, and environmental regulations. The application process typically requires detailed system designs, site plans, and soil analysis reports. Local health departments or permitting authorities should be consulted to determine specific requirements. Inspections are often conducted during and after installation to verify adherence to established standards. Failure to secure the appropriate permits can lead to legal repercussions and system non-compliance. Proper excavation and site preparation are also essential for a secure and efficient system setup.
Tank Installation and Assembly
The Infiltrator IM-Series tanks are designed for relatively straightforward installation. The tanks arrive in two pieces that clip together, creating a watertight seal without the need for additional sealing materials. Proper placement involves aligning the tank’s inlet and outlet ports according to the overall system design. Care should be taken during handling to avoid damage, despite the tank’s lightweight construction. Once positioned, the tank is ready for connection to risers and other system components. Following the manufacturer’s instructions for assembly is paramount to ensure structural integrity and long-term functionality.
Assessing Buoyancy Control Needs
A critical aspect of Infiltrator IM-Series tank installation is evaluating the potential for tank buoyancy. Buoyancy control measures may be necessary if the water level outside the tank has the potential to rise 30 inches (750 mm) or more above the bottom of the tank. This assessment requires determining two key parameters: the maximum height of water outside the tank above the tank bottom, and the depth of soil cover above the tank top.
Table 1, provided in the documentation, outlines specific conditions requiring buoyancy control based on these parameters. The table details conditions for Infiltrator tank models IM-540, IM-1060, and IM-1530. The documentation specifies that IM-Series tanks should not be installed where the water level outside the tank exceeds the height of the outlet pipe saddle. A minimum of 6 inches (150 mm) of soil cover backfill is required.
The documentation provides a visual aid, Figure 1, for assessing water elevation in relation to the tank and surrounding soil. Figure 2 further illustrates the buoyancy control parameters outlined in Table 1. The assessment should consider seasonal high groundwater elevation or perched water elevation measured from the bottom of the tank.
Buoyancy Control Methods
If buoyancy control is deemed necessary, the documentation outlines a method for determining the minimum required measures. Step 2 of the guidance document directs users to Table 2 (not provided in the source material) to determine appropriate buoyancy control methods based on site conditions. Step 3 then provides implementation procedures for the selected method. The documentation emphasizes that tank buoyancy control measures must be implemented according to state and/or local regulations, which may supersede the provided guidelines. If uncertainty exists regarding local requirements, contacting the local health department or permitting authority is recommended.
Soil Cover Depth and Water Height Parameters
The documentation specifies acceptable ranges for soil cover depth above the tank top, ranging from a minimum of 6 inches (150 mm) to a maximum of 48 inches (1,200 mm). The maximum allowable water elevation outside the tank corresponds to the height of the outlet pipe saddle invert. The documentation categorizes water height above the tank bottom into four parameters:
- Greater than 43 inches (1,075 mm)
- 36 inches (900 mm) to 43 inches (1,075 mm)
- 30 inches (750 mm) to 36 inches (900 mm)
- Less than 30 inches (750 mm)
These parameters, in conjunction with the depth of soil cover above the tank top, determine whether buoyancy control is required and, if so, the appropriate measures to implement.
Final Connections and Inspections
Once the tank is properly installed and any necessary buoyancy control measures are in place, the final connections can be made. This includes connecting the outlet pipe from the tank to the drainfield. Before backfilling and completing the installation, a qualified inspector should check the system to ensure it meets all local codes and regulations. This inspection is a critical step in verifying the integrity and functionality of the installed system.
Maintenance and Troubleshooting
Regular maintenance is essential for ensuring the long-term performance of an infiltrator septic tank. Routine inspections, conducted at least once a year, can help identify potential problems or blockages. The tank should be pumped every 3-5 years, depending on usage. Monitoring the health of the drainfield is also important, as signs of pooling water or foul odors may indicate a problem. The documentation provides a summary of key installation steps, including understanding the system, preparing the site, and following the installation process.
Conclusion
The installation of an Infiltrator IM-Series septic tank requires careful planning, adherence to local regulations, and a thorough understanding of the system’s components. Assessing and addressing potential buoyancy concerns is a critical aspect of the installation process. By following the guidelines outlined in the provided documentation and consulting with local authorities when necessary, homeowners and professionals can ensure a successful and long-lasting wastewater management solution. Proper installation and regular maintenance are key to maximizing the efficiency and environmental benefits of an infiltrator septic system.