SANS 241 · SANAS-accredited labs
Water Testing in Cape Town
Accredited laboratory analysis according to SANS 241 standards | Expert results interpretation by Cape Water Tech, serving Cape Town and South Africa
Pick the right test
Our Water Testing Packages
Every package includes a certified lab report. Not sure which one you need? Ask us on WhatsApp.
Water Analysis Irrigation
Determine suitability for agricultural use and crop health.
- pH, Electrical Conductivity
- Sodium Adsorption Ratio (SAR)
- Calcium, Magnesium, Sodium, Potassium
- Chloride, Sulphate, Bicarbonate
- Boron (critical for sensitive crops)
- Iron, Manganese
- Nitrate-Nitrogen
- Total Alkalinity
Sample volume required: 2L
Water Analysis Microbiological (Potability Extended)
Comprehensive microbiological analysis covering critical parameters.
- Total Bacteria
- Total Coliforms
- E.coli
Sample volume required: 2L
Water Analysis Chemical (Potability Basic)
Essential testing for basic drinking water safety assessment.
- pH, Conductivity, Alkalinity
- Total Dissolved Solids (TDS)
- Chloride, Sulphate, Fluoride
- Ammonia, Nitrate
- Colour, Turbidity
- Basic Metals: Iron, Manganese, Copper, Zinc
- E. coli & Total Coliforms
- Heterotrophic Plate Count
Sample volume required: 2L
Water Analysis SANS 241 (Microbiological & Chemical)
SANS 241 Drinking water compliance testing covering both microbiological and chemical determinands.
- All Extended and Basic Potability parameters
- Microbiological: E. coli, Total Coliforms, HPC
- Turbidity, Colour, Conductivity, pH
- Free Chlorine, Total Chlorine (if applicable)
- Ammonia, Nitrate, Nitrite
Sample volume required: 2L
Free app · iPhone & Android
Already Have Your Water Test Results?
Use our free Aqualize Water Analysis tool to interpret your results instantly and receive recommended filtration solutions based on SANS 241 guidelines.
- Snap a photo of your lab report and we fill in the values
- Every result checked against SANS 241 limits
- Works with reports from any lab
Simply enter your laboratory results into our interactive tool for instant system recommendations.
Specialised Testing Services
🏭 Effluent & Wastewater Testing
- Biological Oxygen Demand (BOD)
- Chemical Oxygen Demand (COD)
- Total Suspended Solids (TSS)
- Ammonia, Nitrate, Phosphate
- Faecal Coliforms & E. coli
- Metals and Toxicants
🐄 Livestock & Agricultural Water
- Full water quality analysis for livestock drinking water (DWAF Vol. 5 guidelines)
- Microbiological safety assessment
- Nitrate/Nitrite for animal health
- Heavy metals screening
🏭 Industrial Process Water
- Boiler feed water quality
- Cooling tower water analysis
- Legionella testing
- Corrosion potential assessment (LSI)
What is SANS 241?
SANS 241 is the South African National Standard for drinking water quality. It defines the minimum requirements for water to be considered safe for human consumption, covering microbiological, chemical, physical, and aesthetic parameters.
Compliance with SANS 241 ensures water supports long-term health, reduces risks of waterborne diseases, and meets rigorous quality, safety, and taste standards. It is South Africa's national standard for potable water, developed in line with World Health Organization (WHO) drinking water guidelines.
From your tap to a treatment plan
How Our Water Testing Service Works
Four simple steps. You take the sample, we handle the lab, the paperwork and the hard part: telling you what the numbers mean.
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1 Online
Order Your Test
Choose the package that fits your water and how you use it. We send you a pre-checked lab form with clear sampling instructions.
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2 At your tap
Collect & Submit
Follow the sampling guidelines carefully. A courier collects from your door and delivers it straight to our laboratory partner.
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3 5–10 working days
Receive Results
A SANAS-accredited laboratory analyses your sample and issues a certified report, usually within 5–10 working days.
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4 Our engineers
Expert Interpretation
Run your results through our free analysis tool, then send them to Cape Water Tech for expert review and qualified treatment recommendations.
Why Test with Cape Water Tech
🔬 SANAS Accredited Laboratories
All analyses are performed by ISO 17025-accredited laboratories, ensuring accurate, reliable, and legally defensible results.
📊 Expert Results Interpretation
Laboratory data alone is not enough. Our water treatment specialists interpret your results and recommend appropriate treatment solutions tailored to your specific situation.
🔄 End-to-End Service
From sample collection guidance through to treatment system design and installation, Cape Water Tech provides complete water quality management.
Get it right first time
Sampling Tips & Turnaround Times
A good result starts with a good sample. These few habits stop contamination and keep the numbers honest.
📋 Microbiological Sampling
- Use sterile bottles provided in your sampling kit
- Never rinse sterile bottles before use
- Fill to the marked line (typically 200-250mL)
- Keep samples cool (below 10°C) during transport
- Submit to laboratory within 24 hours of collection
🧪 Chemical Sampling
- Use clean, appropriate bottles provided
- For boreholes, pump water for 5 minutes before sampling
- Avoid sampling from leaking taps or stagnant lines
- Fill bottle completely, leaving no air space
- Keep samples cool and in the dark during transport
⏱️ Turnaround Times
- Microbiological results: 5-7 working days
- Basic chemistry: 5-7 working days
- Full SANS 241: 7-10 working days
- Metal analysis: 7-10 working days
Water Testing FAQs
Do you offer water testing in Cape Town?
How long do water test results take?
What does SANS 241 compliance testing check for?
Can you test borehole, municipal or irrigation water?
What happens after I get my results?
Ready to Test Your Water?
Contact our team to discuss your testing needs and order your water analysis kit. We'll help you select the right package for your situation.