Bathroom Sink Drain Installation: Mistakes to Avoid

For a bathroom sink drain to function properly over the long run it must be installed correctly to begin with. Remember that pipes and drains don’t last forever and as time goes by the connections will start to loosen and leak due to everyday wear and tear. That being said, high-quality installations usually last longer than cheap ones, so it is advisable to invest in quality parts. Here are some common mistakes to avoid when installing the bathroom sink drains.


When you first install the drains, make sure that all of the connections are in place and fastened tightly. Do not tighten too securely, which could lead to strain and cracking. It may also cause it to warp, allowing water to pass through. Always make sure that all the washers are placed accordingly because this small piece of plastic is the mechanism that closes air leakages around the pipe. When applying the putty do so with care without using too much or too little.


When assembling the bathroom sink drain always try to use stainless steel parts. Normally all parts found in the drainage bundle are stainless steel but when you are buying the drain set separately yourself make sure to ask that all parts are stainless steel, to avoid premature maintenance repairs. Corrosion is the main problem that causes the drains to leak, so try to avoid any corrosive acids being poured down the drains even if they are for cleaning purposes.

When you are cutting the plastic pipes for the bathroom sink drain, do not cut them too long because the overlapping of pipes forces the pipes out of alignment and as a result produces unnecessary pressure on all of the connections. Problems arise even if the pipes are cut too short because although it seems that all is fine, in the long run water starts to seep out and the drains will eventually start leaking.

Unnecessary Clogging

If your bathroom sink drains are to work properly you need to clean them regularly. Cleaning your drains doesn’t necessarily mean that you have to disassemble your drains, but if regular cleaning is not maintained, disassembling will then be your only choice. As mentioned before it is advisable to avoid hazardous cleaning material because firstly, they are dangerous to you and, secondly, they will damage your drains.

The best way to clean your bathroom sink drains is by flushing the drains regularly with boiling hot water, ideally once a week, to prevent serious clogging, and to keep your system flowing smoothly.

Although careful installation is carried out and regular maintenance is observed, you cannot prevent the drains from cracking and leaking over time. On the positive side, if you take all of the necessary precautions during and after installation you can make your drains more efficient and make them last longer. If the drains are old and start to leak, it is preferable to replace them altogether. Trying to salvage some of the old parts to save money in the short term will only incur greater expense when you have to replace them eventually.