SANAS Certified  ·  Prepared Water

Pure Hydration,
Every Drop.

Cool Prepared Water uses advanced reverse osmosis technology to deliver consistently clean, refreshing still water — in sizes for every need.

10L
Flagship bottle size
RO
Reverse osmosis purified
SANAS
Accredited & certified
0
Added preservatives
Our Range
Products
Available in multiple sizes to suit homes, offices, events, and on-the-go lifestyles.
500ml Bottle
Cool Still — 500ml
500 ml
Perfect pocket-sized hydration for commutes, school, and sport.
Still
2L Bottle
Cool Still — 5L
5 Litre
Ideal family meal-table bottle. Light, easy grip, fully recyclable.
Still
10L Bottle
Cool Still — 10L
10 Litre
Our flagship bulk bottle with ergonomic carry handle — great for home & office use.
Most Popular
Why Choose Us
Benefits
Cool water is more than hydration — it is a commitment to quality, safety, and sustainability.
Ultra-pure water
Reverse osmosis removes 99.9% of contaminants, heavy metals, and dissolved solids for pristine taste.
Certified quality
SANAS accreditation and regular third-party lab testing ensures every bottle meets strict safety standards.
Eco-friendly packaging
All bottles are made from 100% food-grade recyclable PET plastic. Bulk sizes reduce single-use waste.
Safe for the whole family
No fluoride, chlorine, or chemicals added. Suitable for infants, pregnant women, and the elderly.
Convenient delivery
Regular scheduled deliveries to your home or office across South Africa — never run dry again.
Transparent sourcing
Full traceability from municipal source water to finished product. We publish our water quality reports.
How We Do It
Our purification process
A multi-stage system designed to remove every impurity and deliver consistently great-tasting water.
1
Pre-filtration
Sediment and activated carbon filters remove particles, chlorine, and odours from source water.
2
Reverse osmosis
High-pressure membrane filtration removes dissolved salts, heavy metals, and micro-organisms.
3
UV sterilisation
Ultraviolet light neutralises any remaining bacteria and viruses without adding chemicals.
4
Ozonation
Ozone treatment preserves freshness and extends shelf life naturally — no preservatives needed.
5
Bottling & sealing
Filled and sealed in a dust-free clean-room environment using tamper-evident food-grade caps.
Water Analysis
Typical mineral profile
Our water is tested regularly. Below is a representative analysis of Cool Prepared Still Water.
ParameterResultUnitSA SANS 241 Limit
TDS (Total Dissolved Solids)< 50mg/L≤ 1200
pH6.5 – 7.5—5.0 – 9.7
Calcium (Ca)< 5mg/L≤ 150
Magnesium (Mg)< 3mg/L≤ 70
Sodium (Na)< 10mg/L≤ 200
Chloride (Cl)< 10mg/L≤ 300
Nitrate (NO₃)< 1mg/L≤ 11
E. coli0CFU/100mL0
Compliance & Accreditations
Quality certifications
Cool water meets and exceeds national and international standards for drinking water safety.
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SANAS
SA National Accreditation System
📋
SANS 241
SA Drinking Water Standard
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WHO Guidelines
World Health Organisation compliant
♻️
PETCO
PET Plastic Recycling SA
Got Questions?
FAQs
What is "prepared water"? +
Prepared water is purified municipal or borehole water that has been treated through advanced filtration (such as reverse osmosis) to remove contaminants. It differs from spring water, which is sourced from underground natural springs.
Is Cool water safe for babies and infants? +
Yes. Because Cool water has no added fluoride, chlorine, or chemicals, it is suitable for preparing infant formula and for drinking by babies and young children.
How long does the 10L bottle stay fresh once opened? +
Once opened, we recommend consuming within 7 days and storing the bottle in a cool, shaded area away from direct sunlight. Always keep the cap tightly closed when not in use.
Do you offer regular delivery subscriptions? +
Yes — we offer weekly and bi-weekly delivery options for homes and offices. Contact us or visit the website to set up a subscription plan in your area.
Are your bottles recyclable? +
All Cool bottles are made from food-grade PET (Type 1 plastic), which is widely accepted at South African recycling facilities. Look for the recycling triangle on the base of each bottle.
Get In Touch
Contact us
We'd love to hear from you — whether you're a new customer, a retailer, or need bulk supply.
📞
Call us
+27 (0)21 000 0000
📧
Email
info@coolstillwater.co.za
📍
Head office
Mayfair, Johannesburg, South Africa
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Office hours
Mon – Fri, 08:00 – 17:00