The Inserta Tee® fitting provides a method for connecting to existing pipelines without extensive excavation or disruption. This document details the installation process, compatibility, and key considerations for utilizing Inserta Tee fittings, based on available documentation. These fittings are designed for service lateral connections ranging from 2” to 24” and are compatible with a wide range of drainage materials. The installation process focuses on creating a watertight, air-testable connection through compression and does not rely on adhesives or gaskets.
Understanding the Inserta Tee System
Inserta Tee fittings offer a streamlined approach to adding connections to existing pipelines. Traditional methods often require cutting a section of the host pipe and installing a wye or tee fitting, which involves significant digging and bedding disturbance. The Inserta Tee system, conversely, utilizes a hole-sawing technique to create an opening for the lateral connection. This minimizes excavation and preserves the structural integrity of the surrounding environment.
The system’s versatility extends to its compatibility with various pipe materials currently used in drainage systems. Documentation indicates the fitting can connect to the largest range of sizes in the industry and all drainage materials manufactured today. Performance is described as watertight and air testable, though the documentation notes that watertight performance is dependent on the type and condition of the host pipe. Users are advised to consult with an ADS representative for specific applications.
Preparing for Installation
Prior to initiating the installation process, several preparatory steps are crucial for ensuring a successful and reliable connection. These steps include uncovering the host pipe and preparing the surface for drilling.
The installation instructions specify uncovering only the portion of the mainline pipe where the tee will be installed, avoiding unnecessary disturbance to the surrounding bedding. Thorough cleaning of the pipe surface is then required to ensure proper adhesion and sealing.
A critical aspect of preparation involves selecting the appropriate hole saw. Reference to STD-1102 is made for hole saw selection information. Applying soap and water to the impact point of the hole saw during coring into the mainline pipe is recommended, potentially easing the cutting process. It is also important to remove any burrs or debris created during the drilling process to ensure a smooth and clean surface for the fitting. The ideal hole placement is at the spring line or higher on the host pipe, with a typical installation location halfway between the spring line and the crown of the pipe at a 45-degree angle.
The Six-Step Installation Process
The installation of an Inserta Tee fitting involves a defined six-step process, as detailed in the provided documentation. A QR code is referenced as providing a video demonstration of the process.
- Core the Hole: Utilize the recommended Inserta Tee hole saw to create the necessary opening in the host pipe.
- Insert the Sleeve: Push the rubber sleeve into the created hole.
- Align the Guide Lines: Align the red line on the PVC hub with the gold line on the rubber sleeve. For “OneFit” versions, the sleeves should be folded and adjusted to properly sandwich the pipe wall, ensuring both gold lines are aligned.
- Drive the Hub: Using a wood block and a 4lb hammer, drive the PVC hub through the rubber sleeve and the mainline pipe until the red horizontal homing line on the PVC hub is reached.
- Secure with Band: Place and tighten the stainless steel band onto the rubber sleeve.
- Final Check: The fitting achieves a seal through compression created by driving the PVC hub through the rubber sleeve. The stainless steel band secures the PVC hub and sleeve together during the initial wet phase of the installation. Once the solution dries, the band’s primary function is complete.
Important Considerations During Installation
Several key considerations are highlighted within the documentation to ensure a successful installation. The stainless steel band, while crucial for initial alignment and compression, does not provide the primary seal. The seal is achieved through the compression of the rubber sleeve by the PVC hub. Therefore, proper driving of the hub to the designated homing line is paramount.
The documentation emphasizes the importance of using a high-quality saddle tee specifically designed for the pipe material being used. Adherence to the manufacturer’s guidelines is also stressed. The use of a drill guide is recommended to ensure a clean and centered hole.
Compatibility and Material Considerations
The Inserta Tee fitting is designed for broad compatibility with various pipe materials commonly used in drainage systems. The fitting accommodates service laterals ranging in size from 2” to 24”. However, the documentation includes a caveat regarding watertight performance, stating that it is dependent on the type and condition of the host pipe. Users are encouraged to contact an ADS representative to discuss specific application requirements and ensure compatibility.
The system eliminates the need for glues, epoxies, grout, or awkward gaskets, simplifying the installation process and reducing the potential for errors. This also minimizes the need for specialized tools or expertise.
Troubleshooting and Best Practices
While the Inserta Tee system is designed for straightforward installation, potential issues can arise. Ensuring the correct hole size and proper alignment of the fitting components are critical for achieving a watertight seal. If leakage occurs, re-examining the alignment and compression of the hub and sleeve is recommended.
The documentation suggests using a tip to ensure a successful installation: utilize a high-quality saddle tee designed for the specific pipe material and meticulously follow the manufacturer’s guidelines.
Conclusion
The Inserta Tee fitting offers a practical and efficient solution for adding lateral connections to existing pipelines. Its key advantages lie in its minimal invasiveness, broad material compatibility, and simplified installation process. By adhering to the outlined six-step installation procedure and considering the important factors related to hole preparation, alignment, and compression, users can achieve a reliable and watertight connection. The system’s design eliminates the need for adhesives and complex sealing methods, making it a viable option for a range of underground and sewer applications.