It is highly likely that you don’t give it much importance or you overlook its functionality, but the shower’s drain flange plays a pivotal role in its operation. If you look carefully, you can find it around the drain for your shower. In technical terms, it seals the joint between the shower and the drain assembly below. If the drain flange is failing to create a tight enough seal, then it can lead to a leak below the shower. So, as soon as you spot or identify the first sign of trouble, you need to fix the drain flange.