How do you connect a plastic toilet flange to a lead drain line in cement basement floor?
First, in order to accomplish this task, be sure the plastic flange fits the opening in question. It this is new work and anchor bolts or anchorbolt holes are not already in place, fit the flange to the lead drain line as you want it to go and by this guide, using a cement bit, drill holes in the cement(assuming the basement floor is cement). Two holes are required. After the holes are drilled, force lead inserts into the holes. These are to screw the anchoring bolts into to hold the flange stable. Choose the correct lead inserts and the side drill bit to match. Any hardware store can match these up for you. The remount the flange, through the proper holes in the flange, the ones you used as a guide for the holes, then insert the ancholr bolts and tighten down. It Holes are already in place and no lead inserts are already in the holes, simply obtain the proper inserts, bolts and Voila! do according to the above, simple yes?