Common problem · Buda, Kyle & San Marcos
Why does my water look cloudy?
Cloudy or milky water is almost always dissolved air. Tiny bubbles from pressure changes clear from the bottom of the glass upward within a minute. That's harmless and needs no equipment. Cloudiness that settles as particles or never clears is worth testing, because that's sediment or minerals.
Air, almost every time
Cold water under pressure holds a lot of dissolved air. When it leaves your tap and the pressure drops, that air comes out of solution as microbubbles, the same fizz physics as opening a soda. Millions of tiny bubbles look milky white in a glass.
You'll see it more in winter (colder water holds more air), after the utility works on nearby lines, and in hot water, since heating drives air out. None of those change what's actually in the water. The glass test below separates the harmless case from the one worth a closer look.
Try this first
The honest, cheap stuff
This is the rare problem page where the honest first step usually ends the story. Most cloudy-water calls need zero equipment.
The ten-second glass test
Fill a clear glass and set it on the counter. Air clears from the bottom up as bubbles rise, usually within a minute. If that's what you see, you're done. It's air, it's harmless, and no one should sell you anything for it.
Look at what settles
If particles sink to the bottom instead, that's sediment. Note whether it's white grit (often mineral), rusty flecks, or sand, and which taps show it. That's real information for a test.
Run the cold tap after line work
If the utility or a plumber just worked nearby, run cold water for a few minutes to flush stirred-up sediment. One-time cloudiness after work is normal.
Check whether it's hot-only
Hot water that pours cloudy and clears is textbook dissolved air escaping. Hot water with persistent particles suggests the water heater is shedding sediment and could use a flush.
The lasting fix
For the case that isn't air
Persistent cloudiness that never clears, or particles that keep arriving at multiple taps, means something is actually suspended in the water: fine sediment, stirred minerals, or corrosion products. That's measurable, and the right response depends on what it is, which is exactly what a proper test sorts out.
When the answer is sediment from the supply, point-of-entry filtration clears it for the whole house. When it's the water heater or a dying pipe, we'll tell you that instead, because filtering symptoms of a plumbing problem helps no one but the person invoicing you.
Questions
Questions we get all the time
Is cloudy water safe to drink?
When it's dissolved air, completely. Bubbles are bubbles, and the water is unchanged. If cloudiness persists or settles as particles, don't panic, but do get it tested before assuming either way. Clarity and safety are separate questions, and a test answers the one that matters.
Why is my hot water cloudy but my cold water clear?
Heating water drives dissolved air out of solution, so hot taps pour fizzier. If it clears from the bottom of the glass in under a minute, that's the whole story. It's the most common cloudy-water report there is, and it's normal.
My water turned cloudy all of a sudden. Why?
Sudden milkiness usually follows a pressure or temperature change: utility line work, hydrant flushing, a cold snap, or plumbing repairs in your own home. Give it a day or two of normal use. If it doesn't return to normal, that's when testing earns its keep.
Does cloudy water mean high hardness?
Not directly. Hardness dissolves invisibly, which is why perfectly clear water here can still be very hard. The white residue hardness leaves shows up after water dries, not while it's in the glass. The two issues are cousins, but the glass test tells them apart.
Still cloudy after the glass test?
Then it's worth real numbers. The free test checks sediment, hardness, iron, and TDS at your tap in about 30 minutes, and we'll tell you plainly if the answer is 'nothing to fix.'
What you get
- Hardness, chlorine, iron, and TDS tested at your tap
- Results explained in plain English, yours to keep
- A recommendation sized to your home (only if you want one)