I am replacing a floor drain which required me to saw off the old drain which was cemented to 4" schedule 40 PVC. I had limited room to do this (Please see the picture below; I had broken out the concrete and gravel/earth around the drain), so I used a Dremel with a plastic cutting blade to cut from the inside of the pipe, leaving a slightly jagged pipe end. The new drain has a hub connection that fits over the end of the pipe I've cut. I've read that the end of the pipe should be as square as possible to maximize the quality of the hub connection. Right now the cut isn't square and I'm having a hard time figuring out how to make it square. As such, I have a few questions in one here, because I'm not sure what my options are.
- How important is the squareness? If one side is off by a third of an inch or so, will this really matter once the hub connection is solvent cemented onto the pipe, considering there will still be a couple of inches or so of bonding surface?
- If the squareness is important, what are some good ways to cut the pipe, seeing as I have very limited room to work with it from the sides?
- I have considered sanding/grinding from above until the edge is level. Would the PVC dust be dangerous if I were applying suction from a shop vac (with a HEPA filter and dust bag) and wearing a respirator?
- I had hopes there would be a tool that could be placed over the end of a 4" pipe and turned to make a squared-off cut. Does any such tool exist? Is there anything at all that can squarely cut 4" pipe without needing much room at the sides of the pipe?