If your p-trap were to fail, you could have the unpleasant experience of sewer gasses leaking into your home. These gasses aren’t just bad-smelling, they could actually be harmful to your health.
There are some things that you should avoid doing to make sure that your p-trap works as intended.
Your p-trap is usually only able to handle drainage from two sources, so you should not have too many things connected to it. It is also important that the p-trap is properly ventilated, since a lack of ventilation will make it drain slower. An improperly vented drain will cause gurgling noises in other drains when it is being used.
On the other hand, when your drain isn’t used very frequently, you might need to install a tap primer. This is to keep adding water to the p-trap when it evaporates. If this is not done, your p-trap might not seal the drain properly.

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