Your AC unit has an air filter to catch particles like dust, grit, and pet hair and prevent them from getting into the components of the unit. You can imagine that a motor or a fan would not work as well if it was caked with a layer of lint. But when that layer builds up on the air filter, it needs to be changed. A dirty air filter can be almost as bad for an air conditioner as no air filter at all, because in order to work, your AC unit needs good airflow.
What can happen to your air conditioner if it doesn’t have enough air flowing through it? Once you read about all the potential problems, you’ll be sure to clean your air filter regularly so you can avoid them.
Plumbing can seem a little bit like magic: it’s largely invisible (behind walls or beneath your foundation), and if you’re not an extremely skilled practitioner, meddling with it can cause big problems! We’re going to make it a little less mysterious for you while we discuss slab leaks. You won’t become a qualified magician (or plumber) by reading this, but you’ll come to understand the special skills and tools that help the plumber do their job, and you’ll have a better idea of when to call a plumber. 
