When you feel that you can no longer turn the pipe by hand then switch to pipe wrench and turn the fitting 1 2 turns to secure the pvc fitting.
Connecting pvc to galvanized drain pipe.
You probably will need to install a new stud or two as well as blocking for the upper clamp.
Mark and cut the desire length of pipe from the end of the lead pipe and the end of the pvc using the reciprocating saw.
Apply pipe thread tape before screwing them together and then glue the pipes into the fittings using the proper cement.
This helps solid materials flow by the connection without getting hung up.
If you plan to connect to an existing pvc farther down the drain line cut the.
This video covers how to connect a galvanized pi.
If the pipe is.
Plug the female threaded galvanized coupling onto the teflon wrapped pvc pipe and start to hand tighten by clockwise.
When connecting di pipe to an existing steel pipe concrete pressure pipe ac or other pipe it may be necessary to expose the existing pipe to determine the type size od and if possible manufacturer of the existing pipe.
Use this link for more information on connecting abs to pvc.
Arrange the fittings so the water flows past the threads on the male fitting not into them.
Make the cut anywhere between two threaded couplings.
For example a di restraint gasket may not work on pvc pipe that is designed to work on di pipe.
Measure the diameter of each pipe with the tape measure or ruler.
You can make a transition in the same way that you do for water pipes but it isn t necessary.
Support the pipe above and below with riser clamps so it cannot drop or sway as you work and so the pvc fitting will not have to bear the weight of the drain.
Connecting galvanized and pvc drain pipes drain pipes aren t under pressure so you don t have to be as concerned about leaks.
Remove the corroded pipe.
Yes you can do this by using fernco coupling found at any decent hardware store or plumbing supply.