Poly Saddle Tees

The size of the saddle tee you need depends on the outer diameter (OD) of your poly pipe and the size of the branch connection you want to create. Common poly pipe sizes include 1/2, 3/4, 1, 1 1/4, 1 1/2, and 2 inch. Some poly pipes have slightly different ODs, so check the manufacturing specs to be sure.

Most poly saddle tees are intended to be leak-proof, but the seal depends on the installation and the quality of the fitting. These fittings use rubber gaskets or O-rings to create a watertight seal. To prevent leaks, the saddle should be aligned properly, tightened evenly, and installed on a clean, undamaged pipe. Over-tightening or under-tightening the bolts can compromise the seal.

Yes, as long as the fitting and gasket are still in good condition, you can reuse a poly saddle tee. When removed carefully, the clamp, bolts, and rubber seal can often be reinstalled on another piece of poly pipe. Before reusing, inspect the gasket or O-ring, since a worn seal may cause leaks. It’s also important to reinstall the saddle evenly and tighten the bolts securely. If the gasket shows damage or the fitting is warped, replacing the saddle tee is recommended.

Some saddle tees are specifically designed for PVC, while others are made for flexible poly pipe and use different clamping methods. It’s important to match the saddle tee to the pipe’s diameter and material to ensure a proper seal. Using the wrong type can lead to leaks or pipe damage. Always check the product specifications and ensure the fitting is rated for your system.

Saddle tees can be used underground, but only if they’re designed for burial. For underground use, it’s important to choose a high-quality saddle tee with a secure clamp or solvent-weld connection to prevent leaks over time. Properly tightening them is also key. In high-pressure or long-term applications, some professionals still prefer glued fittings for a more permanent connection.

No. Most poly saddle tees use compression, clamp, or bolt-on connections to create a secure, leak-free fit on the poly pipe. Unlike PVC, poly pipe is flexible and non-porous, so PVC cement or glue won’t adhere properly. Some models even come with a rubber gasket that compresses around the hole for a watertight seal.