PVC Tees

Start by cutting your PVC pipe to the exact length you’ll need it to be before insertion. Once it’s cleaned, apply a layer of PVC primer and a layer of adhesive cement to both the tee fitting and the pipe. Next, fit the pipes into the PVC T-joint and hold for a few seconds to ensure they set properly. Once the cement is cured, try running water through the system to see if it works.

PVC tees can cause a small amount of pressure loss, but it’s usually minimal. The change in direction and flow splitting inside the tee can slightly reduce pressure, especially if water is flowing through the branch line. However, this impact is typically negligible.

A leaking PVC tee is usually caused by an improperly glued joint. Common issues include not using enough primer or cement, failing to fully seat the pipe, or allowing the joint to move before it cures. Cracks from overtightening or stress on the pipe can also cause leaks. In most cases, the only fix is to cut out the leaking tee and replace it with a new one, ensuring a watertight seal.

A standard tee connects three pipes of the same diameter, allowing water to flow evenly in all directions. It’s typically used when all connected lines require the same flow rate and pipe size. A reducing tee, on the other hand, has one outlet that is smaller than the main line. This allows you to branch off to a smaller pipe, reducing flow to a specific zone.

To replace a damaged PVC tee, start by shutting off the water and exposing the affected section of pipe. Since PVC tee fittings are often attached with cement and primer, you’ll need to use a PVC cutter or saw to remove the damaged tee, making clean cuts on both sides. Next, apply PVC primer and cement to the new tee’s connection points, then quickly assemble the new fittings. Hold them in place for a few seconds to set.

If you've already begun installing PVC pipes, choose a T-joint that matches their diameter. For example, you can order a 1-inch T-joint for 1-inch pipes. If your setup uses pipes of different diameters, you can use a reducing T-joint to make the connection.