I am installing a new shower pan and I have copper pipe in my house, which means that I would be installing the drain with oakum and lead. The drain came with a rubber gasket for use with plastic pipe, and that leads me to ask this question: What with all the advances in technology, is there an alternative way to seal a copper pipe, e.g. some kind of waterproof caulk, a different rubber gasket that is thicker to make up for the smaller OD of the copper pipe, etc.?
Thanks,
Bobbo