Water is the last thing we think to test when it should be among our top priorities to ensure that our household is safe from consuming toxic metals and harmful microbes. Hard water for instance has a high amount of dissolved salts and toxic metals like lead and arsenic. Further untreated water sources can have harmful microbes like E.coli. Water testing can be as simple as using DIY tests at home or sending it to a professional lab for comprehensive testing. Let’s look at the different types of water testing kits to test your home water supply.
Types of Home Water Test Kits
- DIY Water Test Kits
DIY kits are ideal for those looking for quick results. These include test strips or digital meters that measure various water parameters like pH, hardness, chlorine, nitrates, and heavy metals like lead.
The Varify 17-in-1 Test Kit is a popular option that tests for 17 different contaminants, including chlorine, and hardness.
- Professional Water Test Kits
For more comprehensive testing, opt for professional lab kits. These are usually expensive and are sent to accredited labs where technicians perform a wide range of tests. They can detect complex contaminants like bacteria, VOCs (volatile organic compounds), and heavy metals with high precision.
The Tap Score test kit for instance offers extensive testing for more than 30 contaminants, including heavy metals, pesticides, and bacteria.
- Specialized Water Test Kits
Some kits are tailored to specific water concerns, such as testing for RO (reverse osmosis) water quality or well water contamination.
Feature |
DIY Kits |
Professional Kits |
Ease of Use |
Simple to use with test strips or digital meters |
Requires sending samples to labs for analysis |
Cost |
Affordable (₹500 - ₹2,500) |
Higher cost (₹2,500 - ₹10,000) |
Accuracy |
General estimates, may not be highly accurate |
Highly accurate, lab-certified results |
Test Parameters |
pH, hardness, chlorine, lead, etc. |
Extensive tests for bacteria, heavy metals, VOCs, etc. |
Time to Get Results |
Instant (within minutes) |
Takes 3-7 days for lab results |
Suitability |
Ideal for general water quality checks |
Best for in-depth analysis or serious concerns |
Level of Detail |
Basic contamination levels |
Detailed and specific contaminant breakdown |
- Water Source
- Well Water: For well water, test kits designed for well water can be used, as they focus on contaminants commonly found in wells, such as bacteria, nitrates, and heavy metals.
- City Water: If you use municipal water, kits may focus on chlorine, chloramine, and fluoride levels, as these are more commonly found in treated water.
- Contaminants
- Lead or Heavy Metals: Look for a water quality check meter or specific metal testing kits.
- Bacteria: A kit designed for bacterial testing, such as those that detect E. coli, is ideal.
- pH & Hardness: Kits like the Varify 17-in-1 Test Kit cover multiple parameters such as pH, hardness, and minerals.
- Budget
- DIY Kits: Affordable options like test strips or digital meters are cost-effective for basic testing.
- Professional Kits: For a detailed analysis, professional kits offer more in-depth results but come at a higher price.
Step-by-Step Guide: How to Test Water Quality at Home
- Preparation
Requirements:
- A home water test kit.
- Clean containers for collecting water samples.
- A timer (if required by the test kit).
- A clean towel or surface to place your materials.
- Testing Process
Follow the instructions in your kit:
- For Test Strips: Dip the strip into the water sample and wait for the color change as per the instructions. Each kit will have a color chart for comparison.
- For Digital Meters: Simply dip the meter’s probe into the water sample, and wait for the digital reading.
- For Professional Kits: Collect the water sample as instructed and mail it to the lab. Make sure to follow all guidelines to avoid contamination.
- Result Interpretation
Once the test is completed:
- For DIY Kits: Compare the color or reading with the chart included in the kit. Look for safe ranges based on the test results, such as:
- pH: A pH level of 6.5-8.5 is safe for drinking.
- Lead: Any detectable lead (over 0 ppb) requires attention.
- Hardness: Water hardness levels above 200 mg/L may require a water softener.
- For Professional Kits: The results will be detailed and sent by the lab. Compare the levels of contaminants (e.g., bacteria, heavy metals) to safety standards set by organizations like WHO or local water quality authorities.
Understanding Your Water Test Results
How to Read Results:
- pH Levels: Ideal range for drinking water is 6.5–8.5.
- Chlorine: Safe chlorine levels are between 0.2–1.0 mg/L.
- Bacteria: Water should be free of bacteria, especially E. coli. A positive result means contamination, making the water unsafe.
- Heavy Metals: Lead should be below 15 ppb, and arsenic below 10 ppb.
Levels exceeding beyond above for each of the parameters warrant professional help.
FAQs About Home Water Test Kits
- How accurate are home water test kits?
Home test kits can offer a general idea of your water quality but may not be as precise as professional lab tests. Accuracy varies with the kit type, with test strips being good for general contaminants and digital meters providing more detailed readings. However, for more critical contaminants like heavy metals or bacteria, professional testing may be necessary for higher accuracy.
- How often should I test my water?
Testing should be done at least once a year for well water, and every 6 to 12 months for municipal water. If you notice changes in your water's taste, smell, or appearance, test sooner.
- What if my test results are poor?
If results show contamination, solutions include using water filters like RO or UV systems, and consulting professionals for severe issues. Alternatively, you may need to rely on bottled water temporarily until the issue is resolved.