Sink Backing Up into a toilet


We love the efficiency sinks bring to our home but when you flush the toilet and water backs up, instead of going smoothly down the drain, there is a cause for alarm. If a sink and toilet share a sewer drain, then a blockage can cause messy back-ups that can disrupt your plumbing.

The Causes

Sometimes heavy rainfall can cause the sink to back up. Most the time the water resides and you can go on with your life. If the situation is so dire that water spews out of the septic tanks though, call the local authorities and have it fixed immediately. This problem can be a public health hazard and should be dealt with quickly.

Sinks backing up is a clear sign that major elements of the entire plumbing systems are affected including the septic drains or main drain line. Whatever the case, it is important to know how to sort out the issue before things get worse. Check your main drain clean outs to see just how far down the line the problem is, this will help you decide if you need to call a professional.

Five Common Solutions

  1. You can save yourself from this situation if you avoid flushing the following:
  • Paper materials
  • Cloths
  • Diapers
  • Tampons

These items will clog a toilet or any drain. Remember to dispose of these kinds of products in the trash.

  1. It might also help if you understand where the sewer lines in your property pass through to avoid planting trees or shrubs in the area. Trees and strong plants have long roots that break into anything as they grow, which might cause various back-ups. If there are already roots interfering with the drainage system, use a root killer to kill the problem.
  1. If the problem just started, try using a plunger or toilet auger that can easily solves problems close to the surface. If the blockage goes much further though, there will be more work to be done and calling a professional plumber may be best.
  1. Never pour oil, epoxies, paint, pesticides and other toxic materials down the drain, as they are never absorbed by water as it passes through, causing clogs that lead to sink and toilet back-ups.
  •  It is possible to install a device that prevents back flow when it rains too hard, but that will cost you some money. A backwater valve automatically detects back flow in the main sewer line and closes off before it can cause water to back up in the toilet.

Now that you know everything about sinks and toilets backing up and the causes, use these tips to solve it and stop further problems with you plumbing. How ever you choose to solve the problem, never ignore this issue because it could cause flooding and leakages that could result in major disaster.