I am getting ready to install a shower stall in my basement. The original contractor left a 2" drain pipe embeded in a plastic pan. The pan sticks up about 3/4" above the finished concrete. Do I cut the pan flush with the floor and then set the stall or what? Any tips on the installation?

Many questions must be answered for this ambitious project. Is the pipe cast iron or plastic? Is the old pan incorporated in the concrete or can it be removed without disturbing the pipe? Is the drain rough-in on the new pan the same as the old one. If I were plumbing this project, I would remove the old pan, and chip a 1' x 1' square of concrete out from around the pipe. This should give enough flexibility to the pipe to allow it to fit into the new pan (assuming the new pan has the same rough-in measurement as the old one). If the drainpipe is damaged when the old pan is removed, the pipe can be shortened and a furnco rubber connection can be used to extend the pipe. This works good because it gives extra flexibility to the drain connection.

This is new construction and the concrete is already cut about 1 foot around. A 1 ft square pan(sleeve) has been installed in the concrete around the plastic drain but that sleeve is about 1 inch above the concrete surface.

If it's new construction then chances are you have PVC drainage pipes. When we rough for bath tubs we leave a 12" square tub dap out but when we rough for a shower we extend the raiser above the pour and pour around it. How far is the raiser off the wall line. It sounds like you were roughed for a bathtub. Please give us the measures of the raiser and the details of the shower stall you wish to install before we can help. Regards, Tom