Water Damage Prevention: The most common causes of leaks in sink traps, also known as P-traps, are loose connections, worn washers, improper pipe fittings, or old and broken parts.

Why does water drip from under the sink?

How To Fix A Leaking Sink Trap: The problem of water leaking from under the sink in your home may seem common, but ignoring it can be costly. A slow leak can damage kitchen cabinets, floors, and other items. Fortunately, in most cases, this problem can be easily fixed without much expense. Let's explain how you can do it.

How can I fix the sink?

According to plumbing experts, the most common causes of leaks in sink traps, also known as P-traps, are loose connections, worn washers, improper pipe fittings, or old and broken parts. Therefore, it's important to first determine the source of the water leak. Experts recommend thoroughly cleaning the entire trap with a dry cloth before investigating. Then, place a bucket under the sink and run hot water for a few minutes. Inspect each connection carefully, using a flashlight if necessary. Sometimes, water leaks from a higher location and drips from a different location below, making it difficult to determine the cause.

Keep this in mind

In most cases, leaks appear near the slip-joint nuts. If the connection is loose, hand-tightening may be sufficient. If necessary, a slight additional turn can be given using pliers. However, experts warn that overtightening may break the plastic fitting or damage the washer. If the leak persists after tightening the nuts, the washer should be checked. Over time, washers harden or flatten, preventing proper sealing. In such cases, installing new washers is considered the easiest and cheapest solution.

What to do if the trap is cracked?

However, if the trap is cracked or the metal pipe is rusted, replacing the entire trap is a better option. PVC P-traps available in the market are inexpensive and also prevent rusting. When installing a new trap, it's important to ensure that all washers are facing the correct direction and that the pipes are properly aligned. Plumbing experts say that if there are frequent leaks or the threads of the fittings are worn, replacing the entire assembly may prove to be a safer and more durable solution than replacing just one part.