Your tap smells like a pool.
Here's what that number means.
You commented CHLORINE and saw the reading. Three ways forward — pick yours. (And below: why utilities add it, and when it's too much.)
Check it yourself
A DIY chlorine strip gives you a reading in seconds. Cheap, fast, and a fine first step — just remember it's not a certified lab result.
- Reading in seconds
- Good for tracking changes over time
- Not a certified lab result
A strip test gives a fast, useful read — it can't detect disinfection byproducts or give lab-grade precision.
Get the right filter
If you'd rather solve it directly, the right system depends on where you want clean water — just the tap you drink from, or the whole house. A few quick questions and we'll point you to the right one.
- Matched to your home and water
- RO for drinking, UV for whole-house
- Backed by AquaStandard
Send it to a lab
The only way to get an exact reading and check for disinfection byproducts. If your water smells strong and you want certainty, this is the real answer.
- Exact, certified reading
- Checks for disinfection byproducts too
- Citable, professional results
Chlorine is added on purpose. It's your disinfectant.
Utilities add chlorine to kill bacteria and keep it dead all the way to your tap. A small "residual" amount stays in the water as a buffer against contamination in the pipes between the treatment plant and your kitchen. The question isn't whether chlorine should be there — it's whether the amount is in the right zone.
Too little, and it can't protect you from regrowth in the pipes. Too much, and it tastes like a swimming pool — and reacting with organic matter, it can form byproducts regulators watch separately. The sweet spot is narrow, and that's the story below.
There's a narrow window between "not protected" and "unbearable."
Tap each zone to see what that chlorine level actually means for your water — and for you.
Reacting with organic matter in the water, chlorine can also form byproducts like THMs — one more reason utilities try to use the minimum needed, not the maximum they're allowed.
Imagine turning on the tap and just... not noticing it.
No pool smell hitting you when you fill a glass. No holding your breath in the shower. Just water that tastes like water — and one less thing pulling at your attention every single day. That feeling is one step away.
AquaStandard
Filter recommendations here are backed by AquaStandard — expert water filtration in Armenia since 2009. They exclusively represent leading European brands, with engineers trained in Europe and deep, specialized knowledge in filtration. The kind of quality you want behind something running in your home every day.
Visit AquaStandard →Quick answers
Is chlorine in tap water dangerous?
At the levels used for disinfection, no. The WHO's health-based guideline is 5 mg/L, and utilities typically target far less — around 0.2 to 0.5 mg/L at the point it reaches your tap. That's what keeps your water free of bacteria between the treatment plant and your kitchen.
Why does my tap water smell like a swimming pool?
That smell is chlorine, and some people can detect it at levels as low as 0.2 to 0.3 mg/L. It gets more noticeable and less pleasant above 1 to 2 mg/L. It's a taste and odor issue, not typically a health one at normal municipal levels.
What are disinfection byproducts?
When chlorine reacts with natural organic matter in water, it can form byproducts such as trihalomethanes (THMs). Regulators set limits on these separately from chlorine itself, which is part of why utilities try to use the minimum chlorine needed for effective disinfection.
How accurate is a DIY chlorine strip test compared to a lab test?
A DIY strip test gives a fast, useful read, but it isn't a certified lab result. For an exact number or to check for disinfection byproducts, a lab test is the way to confirm it.
Why trust this? I'm testing tap water across every marz in Armenia, publicly, and comparing results against Armenian, EU, and WHO standards. Risk assessments stay free, always. I only recommend what I'd actually use myself.