Common Water Problems: Causes, Solutions and Prevention

Last Updated: July 2026

If your water tastes strange, smells unpleasant, leaves white stains, or looks cloudy, you're not alone. These are some of the most common water problems experienced by homeowners and businesses across Kenya.

The good news is that most water quality issues can be identified and treated once you understand what's causing them.

This guide explains the most common water problems, why they happen, how to identify them, and the treatment options that are typically used. Whether your water comes from the municipal supply, a borehole, or rainwater, this guide will help you understand what to look for.

Why Do Water Problems Occur?

Water changes as it travels from its source to your tap.

Depending on where you live, your water may contain naturally occurring minerals, sediment, bacteria, chlorine, or other substances. Water can also pick up contaminants from old pipes, storage tanks, or damaged plumbing.

The type of water source plays a major role.

Municipal water is treated before distribution but can still be affected by aging infrastructure.

Borehole water often contains higher levels of minerals such as calcium, magnesium, iron, manganese, or fluoride.

Rainwater is generally soft but can become contaminated if collection systems and storage tanks are not properly maintained.

The first step toward solving any water issue is identifying the source of the problem.

1. Why Does My Water Taste Bad?

Water should have little or no noticeable taste.

An unpleasant taste is usually caused by dissolved minerals, chlorine, old plumbing, or contamination.

Common causes include:

• Chlorine used during municipal treatment

• High mineral content

• Rust from aging pipes

• Bacteria caused by poorly maintained storage tanks

• Organic material

Possible solutions include activated carbon filtration, reverse osmosis, plumbing inspection, or water testing.

Read next:
Why Does My Water Taste Bad?

2. Why Does My Water Smell Bad?

Water should not have a noticeable odour.

Different smells often point to different causes.

Rotten egg smell

Usually caused by hydrogen sulphide gas or sulphur-reducing bacteria.

Metallic smell

Often associated with iron or manganese.

Chlorine smell

Usually indicates disinfectant remaining in treated municipal water.

Earthy smell

May result from algae or organic matter.

Treatment depends on the underlying cause and may include activated carbon filtration, aeration, oxidation, disinfection, or specialised filtration.

Read next:
Why Does My Water Smell Like Rotten Eggs?

3. Why Is My Water Cloudy?

Cloudy water is one of the most common complaints.

In many cases it is harmless.

Possible causes include:

• Tiny air bubbles

• Sediment

• Sand

• Clay

• High mineral content

If the cloudiness disappears after a few minutes in a glass, trapped air is usually responsible.

If it remains cloudy, the water should be investigated further.

Treatment depends on the cause and may include sediment filters, cartridge filters, multimedia filtration, or laboratory testing.

Read next:
Why Is My Water Cloudy?

4. Why Is My Water Brown, Yellow or Orange?

Discoloured water often indicates rust, iron, manganese, or disturbed sediment inside water mains.

Possible causes include:

• Rusty pipes

• Iron in borehole water

• Municipal maintenance work

• Sediment buildup

Although discoloured water is not always dangerous, it should be investigated before drinking.

Treatment may involve iron removal systems, sediment filtration, plumbing repairs, or flushing the system.

Read next:

Why Is My Water Brown?

Why Is My Water Yellow?

5. Why Does My Water Leave White Stains?

White residue around taps, kettles, and shower heads usually indicates hard water.

Hard water contains high levels of calcium and magnesium.

Signs include:

• White spots on dishes

• Limescale inside kettles

• Reduced soap lather

• Shorter appliance lifespan

Treatment options include water softeners, reverse osmosis for drinking water, or descaling.

Read next:

What Is Hard Water?

6. Why Is My Water Salty?

Salty water is common in some boreholes and coastal regions.

It usually contains high levels of dissolved salts.

Possible causes include:

• Natural underground minerals

• Saline groundwater

• Seawater intrusion

• High Total Dissolved Solids (TDS)

Reverse osmosis is one of the most common treatment methods for reducing dissolved salts.

Read next:

Why Is My Water Salty?

What Is TDS?

7. Why Does My Water Taste Metallic?

A metallic taste often indicates elevated iron, manganese, copper, or zinc.

Possible sources include:

• Borehole water

• Corroded plumbing

• Old storage tanks

Testing is recommended before selecting a treatment system.

8. Why Is My Water Pressure Low?

Low pressure is not always caused by plumbing.

Sometimes the filtration system itself needs attention.

Common causes include:

• Blocked sediment filters

• Worn filter cartridges

• Failing booster pumps

• Pipe restrictions

• Municipal supply issues

Routine maintenance often restores normal flow.

Read next:

Why Is My Water Pressure Low?

9. Why Does My Water Leave Black Particles?

Black particles may come from:

• Worn rubber washers

• Activated carbon fines

• Manganese deposits

• Pipe deterioration

Although some causes are harmless, persistent black particles should be investigated.

10. What Is Hard Water?

Hard water contains dissolved calcium and magnesium.

It is not usually considered unsafe to drink, but it can:

• Damage appliances

• Increase detergent use

• Leave scale inside pipes

• Reduce water heater efficiency

Water softeners are commonly used to reduce hardness throughout a home.

Read next:

What Is Hard Water?

11. What Is High TDS?

TDS stands for Total Dissolved Solids.

It measures the amount of dissolved minerals and salts in water.

A high TDS reading does not automatically mean water is unsafe, but it can affect taste and indicate the need for further testing.

Read next:

What Is TDS?

12. Why Is Iron Found in Borehole Water?

Iron occurs naturally in many underground water sources.

High iron levels can cause:

• Brown staining

• Metallic taste

• Blocked plumbing

• Discoloured laundry

Iron removal systems are often installed before other filtration equipment to improve performance and protect downstream systems.

Read next:

How to Remove Iron from Borehole Water

13. What About Fluoride?

Fluoride occurs naturally in some groundwater across parts of Kenya.

Appropriate fluoride levels help protect teeth, but excessive amounts over long periods can have health effects.

If testing confirms elevated fluoride, treatment options such as reverse osmosis or other specialised systems may be recommended.

Read next:

Does Reverse Osmosis Remove Fluoride?

When Should You Test Your Water?

Water testing is recommended if you notice:

• A sudden change in taste

• An unusual smell

• Discolouration

• White scale buildup

• Brown staining

• A new borehole

• Unexplained stomach illness that may be linked to water quality

Testing provides the information needed to choose the correct treatment system instead of relying on guesswork.

Frequently Asked Questions

Can boiling water solve most water problems?

No.

Boiling helps kill many microorganisms but does not remove dissolved salts, hardness, fluoride, heavy metals, or many other contaminants.

Is bottled water always better?

Not necessarily.

The quality depends on the source, treatment process, storage conditions, and regulatory compliance.

Should I install the biggest filtration system available?

No.

The best system depends on your water source and the contaminants present. A properly selected system is usually more effective and more economical than an oversized one.

How often should water filters be replaced?

Replacement intervals vary depending on the filter type, water quality, and household usage. Following the manufacturer's maintenance schedule helps maintain performance.

Can one filter solve every water problem?

No.

Different contaminants require different treatment technologies. Many systems combine multiple stages to address a range of water quality issues.

Final Thoughts

Every water source is different. Two neighbouring homes may require different treatment solutions depending on their plumbing, storage tanks, or water source.

The best way to solve a water problem is to identify the cause first, then choose the treatment method that matches that specific issue.

If you're unsure why your water tastes, smells, or looks different, start with proper water testing before investing in any filtration system.

Continue Learning

Explore these detailed guides:

• Why Does My Water Taste Bad?

• Why Does My Water Smell Like Rotten Eggs?

• Why Is My Water Cloudy?

• Why Is My Water Brown?

• What Is Hard Water?

• What Is TDS?

• How Reverse Osmosis Works

• How to Choose the Right Water Filter

• Water Filter Maintenance Guide