Buzz
There’s nothing quite like a refreshing glass of water, unless, of course, it tastes completely off. Sometimes you fill a glass from the tap, take a sip, and—ugh. We’re talking about a serious case of yuck.
In some cases, it’s just a matter of being in an unfamiliar place. Tap water can actually taste different depending on where you are because the mineral content of the water changes based on the rocks it flows through, which varies from one area to another.
But what if you’re in your usual spot, grab your regular glass of water, and it’s just not right? It could be due to several factors, such as changes in the weather. For example, in Los Angeles, many people recently reported a “musty” smell and earthy taste from their tap water. The Department of Water and Power explained this was linked to seasonal algae blooms and posed no health risk to the public.
Tap water can adopt a wide range of flavors, thanks to factors like trace minerals in the soil and the water's pH levels. Here’s how it all comes together:
If your tap water tastes like bleach...
A bleach-like, chemical taste in water could be the result of chlorine or another chemical disinfectant. In the U.S., around 98 percent of tap water is treated with chlorine to eliminate harmful bacteria and microbes, although it’s not supposed to affect the taste.
When chlorine is present in higher concentrations, it can give the water a bleach-like odor or flavor. This is more common in areas near large water treatment plants, which may treat the water more intensively to account for the long distances it needs to travel. High demand on the water system can also cause a stronger bleach-like taste, which would typically fade over time.
If your tap water tastes metallic...
A metallic taste in your water often means there’s some metal content in it. This typically happens when pipes start to corrode, which is common in older homes with original plumbing. When pipelines made from heavy metals like iron, copper, or lead deteriorate, the metals can leach into the water. This issue can also occur if you rely on well water.
The more acidic your water is, the more likely it will have a slightly sour, metallic taste. If your neighbors aren't experiencing the same issue, it’s a clear indication that your pipes may need a plumber’s attention.
If your tap water tastes like rotten eggs...
One of the worst surprises your tap water can give you is the smell of rotten eggs. This strong, unpleasant odor is most common in wells, caused by hydrogen sulfide gas. This gas tends to form when there’s decay or a chemical reaction in the soil, or from sulfates in the groundwater, often linked to industrial waste or farm runoff.
Your water heater might be to blame too, especially if it’s old, as it can be a breeding ground for bacteria that produce hydrogen sulfide. Another possibility is that your septic system is too close to your well. If you notice black stains on your silverware or slimy deposits, sulfur bacteria is probably the cause, and you should reach out to a local plumber.
If your tap water tastes like gasoline...
Noticing a gasoline-like taste in your water? Unlike other strange tastes we’ve covered, this one is a serious red flag. If your water tastes or smells like gasoline, diesel, paint thinner, or any similar solvent, it’s crucial to stop drinking it immediately and contact your water supplier without delay.
This unpleasant taste could be the result of an oil or gas spill contaminating nearby underground water pipes. It’s also possible that a leaking oil pump from your car is to blame. Either way, it’s best to be cautious until the water can be properly tested.
Is tap water still safe to drink if it tastes funny?
Since tap water can have such a wide range of tastes, it’s difficult to determine for sure how safe it is to drink. Addressing these odd tastes depends on the specific cause behind the issue.
It might be a good idea to check with your local health department or get in touch with your water supplier to see if there are any recent issues that could be affecting your home’s water supply. Additionally, you can report any concerns to your water utility company and find out if your neighbors are facing similar problems.
But if it turns out the water just doesn’t taste great where you live, there are still steps you can take. Aside from calling a plumber, you could consider investing in carbon filters, pH neutralizers, or other water treatment solutions that might improve the taste. Another option is to let the faucet run for a few minutes, then boil your water and cool it in the fridge. And if none of these work, maybe it's time to move to Switzerland, home of—allegedly—the best-tasting tap water in the world.
