Unclogging a Double Sink - The Plumbing Snake's Surprising Journey & Potential Pitfalls
When faced with a stubborn clog in a double sink setup, a drain-clearing snake (also known as an auger) seems like the perfect tool to reach down and dislodge the blockage. But what if your double sinks are connected by a double sanitary tee, and that tee leads to another sink in an entirely different room? This unique plumbing configuration can lead to some unexpected outcomes, and even potential damage, if not handled carefully.
The Plumbing Snake's Unexpected Journey
In most double sink setups, both drains connect to a single horizontal pipe, which then drops down into a vertical pipe via a sanitary tee. The purpose of the tee is to ensure wastewater flows downwards and prevents backflow between the sinks. However, this also means a blockage could potentially impact both sinks.
When you insert a snake into one drain and start cranking, the snake can navigate through the horizontal pipe, aiming to break up the clog. However, if the clog is located near the sanitary tee, or if there's little resistance, the snake might continue its journey past the tee and into the horizontal pipe leading to the other sink.
Potential Problems & Damage
Surprise Snake: The most obvious (and potentially alarming) issue is the snake unexpectedly emerging from the other sink. If someone is using that sink or simply unaware of your plumbing endeavors, this could lead to a fright or even injury.
Scratching and Damage: As the snake travels through the pipes, its metal coil can scratch the interior surfaces, particularly if it encounters sharp bends or rough edges. While minor scratches might not be a major concern, excessive damage can lead to corrosion and future leaks.
Dislodged P-Traps: If not handled carefully, the snake's forceful movement can dislodge the P-traps under the sinks, leading to water leaks and potential flooding.
Missed Clog: If the snake bypasses the clog entirely and ends up in the other sink, the original problem will remain unresolved, causing continued drainage issues.
If the snake goes into the other bathroom and noboby realizes it's in there, then you might find some damaged items when you do finally find the snake in a tangled up mess.
Preventing Problems
Communication: If the other sink is in a separate bathroom or occupied space, communicate clearly with anyone who might be affected. Let them know you'll be using a snake and to avoid using the sink until you're finished.
Visual Inspection: If possible, visually inspect the pipes under both sinks to understand their configuration and potential points where the snake could change direction.
Careful Maneuvering: Insert the snake slowly and carefully, paying attention to any resistance or changes in direction. If you feel the snake heading towards the other sink, stop and try to redirect it.
Consider Alternatives: If you're concerned about the snake traveling to the other sink, try other unclogging methods first, such as a plunger or drain cleaner.
Professional Help: If you're unsure or uncomfortable with the process, it's always best to call a professional plumber. They have the expertise and tools to handle complex clogs and minimize the risk of damage.
Conclusion
While a plumbing snake can be an effective tool for unclogging double sinks, the possibility of it traveling to the other side through a sanitary tee is real. By taking precautions, communicating effectively, and being mindful of potential risks, you can safely and successfully tackle this plumbing challenge. If in doubt, remember, professional plumbers are always a phone call away!
