Installing a drain pipe is something that anyone can do if they have the right tools for the job. The task itself is slightly challenging to those who have never worked with pipes and plumbing before, but not something that cannot be done. You will only have to put a three-way joint into the pipe system, run your drain pipe off of that, and connect it to the sink up above — or the shower or whatever else it is that you want to drain. Before you begin, however, make sure that you have the following things. You will need to have the water turned off for the entire duration of the project, to avoid flooding the home, so you do not want to waste time driving to the hardware store to buy the things that you need.
Adjustable wrenches are the best because they can be fit to any size pipe. If you know the exact size that you need, you can go with fixed wrenches, but this is not advisable. It is better to have the flexibility in case you have made a mistake in your measurements. This will also give you the ability to use the same wrenches for other projects in the future, saving you money in the long run.
If you are using plastic pipes, as many people do, you need to have some adhesive. This will be spread around with a brush on the end of the pipe and in the fitting. It dries quickly, so do not put it on the pipe until you are ready to put the pipe into the fitting. Once you have done this, hold it in place for a minute so that the adhesive can set. This is waterproof and will help to keep the pipe from leaking.
Above all else, you want to make sure that all of your pipes are running level — or that they are at least running downhill in the direction that you want them to drain. If they are running the wrong way, water can get backed up. The system will become inefficient and might not even work at all. You do not need an expensive level, but you should have one that is calibrated correctly so that you do not make a mistake.
You will need some sort of a saw to cut the pipe. Some plumbers like to use hand saws because the plastic pipe is not that difficult to cut and a hand saw works without any power source; others like to use power saws because they are much faster and they make sure that you get a straight cut every time.