Shower drain installation needs to be done properly or your shower will leak into your shower pan. Over time, this will deteriorate your subfloor and create a much bigger and more expensive headache in the long run.
Exactly what type of shower drain you choose to install is entirely up to you. There are many different choices: screw on, snap in, no caulk, and modular are just a few. They all work well but require different methods for proper installation.
As with all bathroom installations, make sure before you start that you understand everything that you need to know in terms of completing the installation. If you are not sure…call a licensed plumber to do the job!
One of the most difficult aspects of a shower drain installation can be getting access to the shower drain. If you are working in an upstairs bathroom, access will be different than if you are working in the basement or on the ground floor. If you are working on new construction you will likely have better access than if you are working on an existing shower.
For an existing shower, you will need to properly remove the existing shower drain before you proceed to install the new drain. In the process of removing the existing drain, be very careful to avoid damaging any pipes or other materials that you will need to finish installing the new drain.
It is also important that you clean the area thoroughly so that the new drain can make a proper seal. Failure to do so will result in a lot of frustration later on. Once the drain is fully installed, run some water and watch the drain from below if possible. This will let you know if you have properly installed the new shower drain.