Inside an empty drinking water clearwell after cleaning and recoating, with light streaming across the support columns

What’s going on with your water?

Plain-English answers from a licensed drinking water professional, starting with the quickest thing to check.

Most water problems look worse than they are. Brown, cloudy, or smelly water usually has an ordinary cause, and the fix is often simpler (and cheaper) than the first ad you see would suggest.

The trick is knowing what to check first. That’s what this site is for.

Start with what you’re seeing

Discolored or cloudy water

Color usually points to minerals, sediment, or trapped air, not contamination.

A strange smell or taste

Whether it shows up on the hot tap, the cold tap, or both narrows it down fast.

Fridge or dispenser problems

Slow flow and dead dispensers are usually the filter, the lock, or the water line.

Something growing

Common, unpleasant, and almost always fixable with cleaning and a better routine.

Worried about what’s in it

Some contaminants have no taste, smell, or color. Here’s what to know about the ones people ask about most.

City water or a private well?

The answer changes where you should start.

On city water

Your utility tests your water continuously and publishes the results every year. Start with that report, then look at what happens between the meter and your tap.

On a private well

No one tests a private well except you. A regular testing habit is the single most useful thing a well owner can do.


Panel of online water quality analyzers and sample lines inside a drinking water treatment plant

Who’s writing this

I’ve spent 20+ years in drinking water: operating treatment plants, running lab tests, and serving as a regulatory technical advisor for the state. This site is where I explain what I’ve learned in plain English, so you can figure out what’s going on with your water before you spend money on it.

Read my full story →

How I write these guides

  • What to check before what to buy. Most fixes start with a free or cheap check.
  • Health and regulatory facts come from the source: EPA, AWWA, NSF/ANSI, and CDC.
  • No scare tactics. If something is serious, I’ll say so plainly. If it isn’t, I’ll say that too.

Not sure what’s in your water?

Clear water isn’t automatically safe, and water that looks off isn’t automatically dangerous. Testing is the only way to know for sure, and it’s easier than most people expect.


Have a specific question about your water? Reach out through the Contact page — I read everything.