You are now ready to install your shower trim, since the hardest part has already been completed, the installation of the shower rough-in valve. Installing a shower trim over the rough-in valve and tile installation can be done by following a set of steps. While each shower trim has it’s own specific requirements, and each manufacturer further has it’s own proprietary parts, the installation process is relatively the same for the majority of shower trims.
It is important to understand that when you choose a shower trim from a specific manufacturer, like Delta, Moen, and Kohler, and the corresponding shower rough-in valve, should you decide to replace the trim in the future, you are limited by these choices. If in the future, you would like to switch out the shower trim, you will need make sure it is compatible with the already installed shower rough-in valve. Also, should you choose a shower trim with a single handle, and in the future you would like to upgrade to a dual handle, you will need to install the corresponding shower rough-in valve.