How to Connect Cast Iron PVC

Tools and Materials:

- Cast iron pipe

- PVC pipe

- Fernco coupling (a flexible rubber coupling with stainless steel clamps)

- Hacksaw or PVC cutter

- Sandpaper

- Primer and cement for PVC pipes

- Adjustable wrench

- Rubber mallet (optional)

Safety Precautions:

- Always wear safety goggles to protect your eyes during cutting and assembly.

- Work in a well-ventilated area, as some materials and adhesives may have strong fumes.

Instructions:

1. Cut the Pipes:

- Cut the cast iron pipe to the desired length using a hacksaw or an appropriate pipe cutter.

- Cut the PVC pipe to the desired length using a PVC cutter or a hacksaw.

2. Clean the Cut Ends:

- Sand the cut edges of both pipes to remove any sharp edges or burrs. This will help ensure a proper fit for the Fernco coupling.

3. Assemble the Fernco Coupling:

- Place the Fernco coupling over the spigot end of the cast iron pipe, ensuring that the coupling's stainless steel clamps are positioned in the middle of the coupling.

- Slide the PVC pipe into the other end of the Fernco coupling.

4. Tighten the Clamps:

- Using an adjustable wrench, tighten the stainless steel clamps until they are snug against the pipes. Ensure the clamps are evenly tightened to create a watertight seal.

5. Apply Primer and Cement to PVC Pipe:

- Apply a thin layer of primer to the outer surface of the PVC pipe where it will fit inside the Fernco coupling.

- Apply a generous layer of PVC cement to the primed area.

6. Insert the PVC Pipe:

- Insert the PVC pipe into the Fernco coupling, pushing it firmly in until it bottoms out.

- Hold the PVC pipe in place for a few seconds to allow the cement to set initially.

7. Let the Cement Cure:

- Allow the PVC cement to cure according to the manufacturer's instructions before subjecting the pipes to water pressure. The curing time may vary from several minutes to a few hours.

Optional Step:

-If the cast iron pipe is heavy or difficult to work with, you can use a rubber mallet to gently tap the Fernco coupling into place and ensure a tight fit between the pipes.

Remember, if you are working on a plumbing system, it's always a good idea to follow any local plumbing codes and regulations or consider consulting with a qualified plumber if you are unsure about any aspect of the connection process.