When it comes to installing bathroom sinks, some people like to take the do-it-yourself approach. When tackling this job by themselves there are some things they need to watch out for. Cutting down on common mistakes will make sure the sink can be installed properly without any problems.

When installing a bathroom sink, be sure to check on the local code restrictions. Ignoring or violating these restrictions could lead to problems down the road, so people should be sure to adhere to these to prevent any future problems with code enforcement.

Making sure they are using pipes that are of the correct size is also a common mistake people make. A common problem in do-it-yourself bathroom sink installations is that one will buy pipes that are too small. Making sure the pipes are of the proper measurement will ensure proper flow and usage of the new sink.

When attaching the galvanized section to copper, a common mistake most people make is not using the proper connection. Instead of trying to attach these two sections together, a brass or dielectric fitting should be used to attach the copper to the galvanized section.

Another common mistake to avoid is not properly sealing threaded joints. When dealing with threaded joints, pipe compound or PTFE tape should always be used. PTFE stands for polytetrafluoroethylene and is known by the common name of Teflon.

Always be sure to use a level and make sure the sink is not crooked before installing it permanently. A common mistake made by people installing their own bathroom sink is forgetting to make sure the fixture is level. Once the fixture is installed it cannot be leveled out later, checking before final installation is something to keep in mind throughout the process of installing the fixture.

When working with a fixture like a bathroom sink, it is often forgotten to install an air gap filling. By not providing a gap between the drain and potable water, it is possible for wastewater to back up into the sink. This is especially crucial if the water from the sink is going to be used for drinking water.

Another good thing to remember is to keep the supply stub outs long enough that the shut-off valves will fit onto them after the wall is put back into place. This is a mistake that is particularly frustrating because if the valves cannot fit onto the supply stubs when the finished wall is back in place, it could result in having to redo much of the installation again.

While there are other mistakes that are made when installing bathroom sinks, these are some of the most troublesome and easy to avoid.