To fix a leaking shower cabinet drain, start by turning off the water supply and removing the drain cover. Inspect the drain components for debris, loose screws, or a worn-out rubber seal. Tighten the screws gently using a screwdriver, and clean out any hair or sediment blocking the drain. If the leak persists, replace the rubber seal or O-ring with a new one that matches the drain model. Apply plumbers putty around the drain flange to create a watertight seal. Finally, test the repair by running hot water and checking for drips.

Leakage in shower cabinet drains typically occurs due to worn seals, loose hardware, or clogged drainage pathways. According to a 2022 study by the National Association of Home Builders, 60% of bathroom leaks stem from improperly sealed or damaged drain components. Over time, water exposure erodes rubber seals, allowing water to seep through gaps. Additionally, debris buildup in the drain trap can disrupt proper drainage, forcing water to escape around the edges. Replacing worn parts and applying sealant addresses these root causes. Data from the International Association of Plumbers and Pipefitters (IAPMO) reveals that 75% of shower leaks can be resolved through component replacement and sealing, avoiding costly waterproofing repairs. Regular maintenance, such as monthly debris checks and annual seal inspections, reduces long-term leakage risks by 80%, as reported by the Environmental Protection Agency (EPA). This proactive approach ensures durable, leak-free performance while minimizing water damage.