Getting your tank water tested is crucial for ensuring it’s safe and healthy for drinking and other household uses. This process involves collecting a water sample and sending it to a certified laboratory for comprehensive analysis.
Why is Testing Your Tank Water So Important?
Regularly testing your tank water offers peace of mind and safeguards your health. Stored water can become contaminated over time from various sources, including animal droppings, decaying organic matter, or even issues with the tank itself. Identifying potential contaminants early prevents serious health issues and costly repairs.
Understanding Potential Contaminants in Tank Water
Tank water, especially rainwater or water stored in above-ground tanks, is susceptible to a range of contaminants. These can include:
- Microbiological contaminants: Bacteria like E. coli and coliforms, as well as viruses and protozoa, can cause gastrointestinal illnesses.
- Chemical contaminants: Pesticides, herbicides, industrial pollutants, and heavy metals can leach into the water from surrounding areas or the tank materials.
- Physical contaminants: Sediment, rust, and debris can affect water clarity, taste, and odor.
- Nutrients: High levels of nitrates and phosphates can indicate agricultural runoff and contribute to algal blooms.
How Often Should You Test Your Tank Water?
The frequency of testing depends on several factors. For drinking water, it’s generally recommended to test at least annually. If you notice changes in taste, odor, or appearance, or if there’s been a significant event like heavy rainfall or nearby construction, you should test immediately. For non-potable uses, testing every 1-2 years might suffice.
Steps to Get Your Tank Water Tested
The process of getting your tank water tested is straightforward. It primarily involves obtaining a testing kit, collecting a sample correctly, and submitting it to a qualified laboratory.
1. Choose a Reputable Testing Laboratory
Selecting a certified and accredited laboratory is the first critical step. Look for labs accredited by your national or regional environmental protection agency. These labs adhere to strict quality control standards, ensuring accurate and reliable results. Many local councils or health departments can provide a list of accredited laboratories in your area.
2. Obtain a Water Testing Kit
Most laboratories will provide you with a specialized water testing kit. These kits typically include sterile sample bottles, clear instructions for collection, and a prepaid shipping container. Some kits may also come with basic field testing strips for immediate, albeit less comprehensive, analysis.
3. Collect Your Water Sample Correctly
Proper sample collection is paramount for accurate results. Follow the laboratory’s instructions precisely.
- Avoid collecting water after rain: Wait for at least 24-48 hours after significant rainfall to allow any surface runoff to dissipate.
- Run the tap: Let the water run for a few minutes to flush out stagnant water from the pipes and tank outlet.
- Disinfect the tap: If possible, briefly flame the tap outlet with a lighter or wipe it with a bleach solution and then rinse thoroughly with the water you are about to collect.
- Fill the bottle: Fill the sterile bottle to the designated line, avoiding touching the inside of the cap or bottle rim.
- Seal and label: Securely cap the bottle and label it immediately with the date, time, and location of collection.
4. Submit Your Sample for Analysis
Once collected, the sample needs to be delivered to the laboratory promptly. Most labs require samples to be received within a specific timeframe, often 24-48 hours, to ensure the integrity of the biological and chemical components. Use the provided shipping container and follow the instructions for mailing or drop-off.
What Does a Tank Water Test Typically Analyze?
A comprehensive tank water test will examine a range of parameters to give you a clear picture of your water quality. The scope of testing can vary, but most standard kits cover the essentials.
Common Water Quality Parameters Tested
| Parameter Category | Specific Tests | Potential Health Impacts