Bathtub plumbing is the core of installing a bathtub...... so, read on to find a few notes on what to do. Some of the most common mistakes that Do it Yourselfers are included for your reference. Knowledge is POWER!
Careful planning and breaking the process into steps can keep bathtub plumbing from becoming an overwhelming task, and you will succeed at your DIY endeavor.....
The most common mistakes that bathtub plumbing DIYers run into often result to additional costs. If you are going to install your own bathtub, keep these mishaps from happening to you:
The photo below shows a bathtub with the plumbing showing.... I use this example to let you see that there is the drain (connected at the bottom of the tub and at the top to prevent overflow), and the water connections.

To install the bathtub, you need to install first all the needed pipes using the suitable tapes and connection. Once this is done, you will have to carefully put the bathtub in position. If the tub is to be installed (not a stand alone as shown above), make sure you have nailed or screwed the tub in place and that you have anchored it properly.
Another bathtub plumbing step is to connect the hot and cold water lines to the bathtub and to the spout. Checking that these connections are secure will save you a lot of heartache in the future.
With the bathtub plumbing system in place, turn on the water so you can check for leaks. Make sure that all is in place and that there are no leaks before moving forward with tiling, or enclosing the tub.
To learn about many more areas of bathroom plumbing ranging from toilets to showers and tubs please see the pages below.