First, ask yourself why you’re testing. Is it because your water smells like a swimming pool that’s seen better days? Or maybe the dog refuses to drink from the bowl, and you’re pretty sure he’s smarter than you.
Maybe your pipes are older than your grandpa’s favorite radio. Or you just moved into a new place, and the previous owner sprayed something that rhymes with “besticide” in the yard. Whatever the vibe, there’s a test for that.
If you’re on a private well, you’re basically your own water company. Congrats, you’re the CEO of H2O Inc. That means you need to test at least once a year for bacteria, nitrates, and anything that sounds like a rejected Transformer name (like “total dissolved solids”).