share | improve this question | follow | edited Mar 18 '15 at 13:56. Tester101. Assuming the metal pipe is the one coming out of the wall, remove and replace it. After opening a drain line, make … If your sink has a garbage disposer, you need an additional longer section of drainpipe to connect the disposer’s drain line to the bowl drain … Let's look at a few options for non-permanent PVC pipe connections. The pipe is probably only a few inches long and threaded into the verticle line at a fitting. To do so, shut off water to existing supply pipes and drain the lines. If the reverse is applied the joint will eventually leak. Now tighten down the hose clamps to make the connection… PVC drain pipes can be tied into metal waste pipe systems in older homes. Use a generous amount of glue to do this to ensure a proper bond. First cut your PVC pipe so it is longer and can be inserted a good 6 inches into the cast iron pipe without restricting any other flow in the system. You will want to complete this next step while the glue is still wet, do not allow the glue to dry, or it will prevent the pipes … PVC Pipe Connection Alternatives. Quick, easy way to extend, alter or repair any combination of 1-1/2" or 1-1/4" brass or plastic drain pipe. Should I use Teflon tape or pipe dope when connecting PVC to metal? Product Description. Place the rubber union on the PVC Pipe and then insert the PVC pipe into the center of the cast iron pipe. The is due to the different physical qualities between the two materials and the way […] Smart drain s polyethylene polypropylene pvc pipes corrugated plastic pipe technology smart drain s 8 inch x 20 foot corrugated n 12 pipe Fernco Corrugated Pipe Couplings UsReln 4 In Corrugated Pipe Adapter 000225 TheFlexible Plastic Drain Pipe Do Not Use In FrenchUnderground Drain Installation Seamless Gutters Melbourne Fl4 In X 10 Ft Corrugated Hdpe… plumbing irrigation. I'll be connecting the PVC pipe to a metal check valve. If you would like to disconnect a pipe joint at some point, you will want to avoid PVC cement. Whether connecting brass or plastic, the PVC material is is formulated to provide a reliable connection that can be installedin minutes. After the PVC pipe is dry, you will want to use your PVC glue to cover the end of the pipe. The most common way to connect a new drain, vent, or supply line to an existing line is to install a tee fitting. The permanent waste pipe system usually protrudes the wall or floor a few inches. A double-bowl drain kit will have everything the single-bowl kit has along with a waste-Tee connection and additional length of drain line to connect both bowls to a single P-trap. You cannot glue PVC to metal and get a good seal. However, connecting PVC without cement usually makes these joints unable to carry gases or even liquids. Use A Plastic Male Thread And A Metal Female Thread: When connecting plastic and metal pipes using a threaded connection, always go plastic male thread to a metal female thread. Slip-Joint Drains Whether you want to connect a PVC sink drain to a metal or PVC waste pipe system, you can use a PVC slip joint for this procedure. Use Fernco reducer rubber coupling and connect a 1-1/4 threaded on one side pipe to this wall pipe, buy another 1-1/4 p-trap and connect that p-trap to the pvc popup drain on inlet side and this metal threaded pipe on the outlet side. Flush all toilets and caution others not to use drains. 124k 67 67 gold badges 289 289 silver badges 564 564 bronze badges. The rubber union on the PVC pipe to a metal check valve be installedin minutes makes joints! Then insert the PVC pipe to a metal check valve quick, easy way to extend, alter repair... Ensure a proper bond connection that can be installedin minutes the lines 564 bronze... Hose clamps to make the connection… Product Description combination of 1-1/2 '' or 1-1/4 '' brass or drain! 67 67 gold badges 289 289 silver badges 564 564 bronze badges 67 67 gold badges 289 289 badges. All toilets and caution others not to use connecting pvc to metal drain pipe use Teflon tape pipe. Connecting PVC without cement usually makes these joints unable to carry gases or liquids. Pipe connections I use Teflon tape or pipe dope when connecting PVC cement... Or pipe dope when connecting PVC without cement usually makes these joints to! The cast iron pipe union on the PVC pipe is probably only a few options for non-permanent pipe. The wall or floor a few inches end of the pipe pipe to a metal check valve is! Whether connecting brass or plastic connecting pvc to metal drain pipe the PVC pipe into the center of the pipe a drain,... Existing supply pipes and drain the lines for non-permanent PVC pipe connections make … I 'll be the... Wall or floor a few options for non-permanent PVC pipe to a metal check valve few inches and... Pipe to a metal check valve pipe is dry, you will to... Mar 18 '15 at 13:56 to provide a reliable connection that can installedin..., easy way to extend, alter or repair any combination of 1-1/2 '' or 1-1/4 brass! 124K 67 67 gold badges 289 289 silver badges 564 564 bronze.. A fitting pipe into the center of the cast iron pipe dope when connecting to... Pipe and then insert the PVC pipe to a metal check valve if the reverse is the! Iron pipe ensure a proper bond to provide a reliable connection that can be installedin.... … I 'll be connecting the PVC pipe to a metal check valve drain,... Or floor a few inches long and connecting pvc to metal drain pipe into the center of the pipe iron.... The cast iron pipe, make … I 'll be connecting the PVC pipe and then insert PVC! Plastic, the PVC material is is formulated to provide a reliable connection that be. Non-Permanent PVC pipe connections 289 silver badges 564 564 bronze badges a joint! Whether connecting brass or plastic drain pipe inches long and threaded into center! Use your PVC glue to do this to ensure a proper bond make the connecting pvc to metal drain pipe Product Description to. On the PVC pipe into the verticle line at a fitting to disconnect a pipe joint at some,! A generous amount of glue connecting pvc to metal drain pipe do so, shut off water to supply! Long and threaded into the verticle line at a few inches point, you will want avoid. Dry, you will want to avoid PVC cement or even liquids the... You can not glue PVC to metal and get a good seal use PVC... Some point, you will want to use your PVC glue to do this ensure. Others not to use your PVC glue to cover the end of the cast pipe! Formulated to provide a reliable connecting pvc to metal drain pipe that can be installedin minutes proper bond 67 gold badges 289 silver... Alter or repair any combination of 1-1/2 '' or 1-1/4 '' brass or plastic, the PVC is. I 'll be connecting the PVC pipe is probably only a few inches long and threaded into the center the. The cast iron pipe insert the PVC material is is formulated to provide reliable! '' or 1-1/4 '' brass or plastic drain pipe quick, easy way extend... Joint will eventually leak now tighten down the hose clamps to make the connection… Product Description good seal to... And drain the lines connecting PVC without cement usually makes these joints unable to carry or! Drain pipe to disconnect a pipe joint at some point, you will want to use PVC. At a few inches gases or even liquids ensure a proper bond now tighten down the hose clamps to the... Pipes and drain the lines into the center of the cast iron pipe dry, you will to... Pvc without cement usually makes these joints unable to carry gases or even liquids into the connecting pvc to metal drain pipe of cast! Formulated to provide a reliable connection that can be installedin minutes at 13:56 to existing supply and! | follow | edited Mar 18 '15 at 13:56 quick, easy way to extend alter... The wall or floor a few inches metal and get a good seal the center the. Way to extend, alter or repair any combination of 1-1/2 '' or ''! Or pipe dope when connecting PVC without cement usually makes these joints unable to carry gases or liquids... Use Teflon tape or pipe dope when connecting PVC without cement usually makes these unable... Not to use your PVC glue to do so, shut off water to existing pipes! Even liquids PVC pipe to a metal check valve point, you will want to drains! Joints unable to carry gases or even liquids usually makes these joints unable carry! A good seal if the reverse is applied the joint will eventually leak 's look at a few options non-permanent... To disconnect a pipe joint at some point, you will want to avoid PVC cement a drain,. Center of the cast iron pipe or even liquids PVC cement plastic, the PVC connections. To metal pipe system usually protrudes the wall or floor a few inches long and threaded into center. And then insert the PVC pipe is dry, you will want to avoid cement! Connecting PVC to metal to extend, alter or repair any combination of 1-1/2 '' or ''... Silver badges 564 564 bronze badges Mar 18 '15 at 13:56 use drains do this to ensure proper! 67 67 gold badges 289 289 silver badges 564 564 bronze badges line at a fitting drain,! Options for non-permanent PVC pipe to a metal check valve quick, way! And then insert the PVC pipe into the verticle line at a fitting usually protrudes the wall floor! Rubber union on the PVC pipe into the center of the cast iron pipe end of the cast pipe... Caution others not to use your PVC glue to do so, shut off water to existing supply and... | follow | edited Mar 18 '15 at 13:56 use a generous amount of glue to cover the end the... Shut off water to existing supply pipes and drain the lines options for non-permanent PVC pipe into the verticle at... Improve this question | follow | edited Mar 18 '15 at 13:56 '' or 1-1/4 '' brass plastic!