I started this series by providing a list of some different types of pipes. Then, I went over the basic structure of a pipe. Now, we'll roll up our sleeves and a dig in a little deeper to improve the results we get out of a pipe.
The quality of a pipe's results is generally referred to as the ratio of signal to noise. Noisy pipes are full of useless results that take up valuable attention time. Improving the quality of results from a pipe requires a deeper knowledge of modules as well as knowledge about the specific data with which your pipe deals.