How to Install a Bath Drain in a Copper Bath Sink 26. January 2016 CSO-Author How-To Guides and Tips installation tips, SoLuna copper, bathroom sinks, sink accessories, drains (0) Tweet Here at CopperSinksOnline.com, we want our customers to have all the information necessary to be able to install our beautiful copper products quickly and easily. Occasionally, a customer will call in with an installation question - and although installation of our products is fairly straightforward, sometimes it can be difficult to describe the process over the phone! So, we did it ourselves and recorded it for you! In the event that you want to install a bath drain (MT-749 style, MT-745 style, or MT-740 style) into one of our copper bath sinks (any with a standard 1.5" drain opening), we've created a narrated video guide to help you through the process. Keep in mind that we show the drain installation into a sink that is not yet mounted on a countertop. If you've already mounted your sink underneath your countertop, this process will be slightly trickier (because you'll be working upside down, laying underneath your sink)! Please watch the video below to see the parts included with an MT-749 bath drain, and how to install them into a copper bath sink. Then, stay tuned for more videos!