A successful water system design begins with a clear and precise definition of user needs throughout the facility. The purity level and volume of water required at each point of use can vary considerably and therefore must be fully assessed in order to properly inform the designer of the water purification system.

Top 4 Questions You Should Ask When Buying a lab water purification system

1. What do you need the water for? What is your application? What type of water is needed? What is the source of your current water? How much water is required per batch/day? Are there special requirements for delivery?

2. What is your budget? The budget will determine the technology. What is the cost of ownership over five years?

3. Where do you need the system in the lab(s)? Consider, top of counter, under counter or wall mounting the unit. What is the overall footprint/real estate of the system(s) and components?

4. What kind of warranty and service is provided? Is the system manufactured to quality standards and which ones? Is this a pharmaceutical application, does it need to be validated?

The top 10 factors/features in our readers’ decisions to buy a water purification system, based on our most recent survey:

  Important Not Important Don’t Know
Performance of product 95% 4% 1%
Durability of product 94% 1% 5%
Low maintenance/easy to clean 92% 7% 1%
Availability of supplies and accessories 90% 5% 5%
Ease of use 90% 9% 1%
Value for price paid 89% 9% 2%
Total cost of ownership 88% 10% 3%
Low operating costs 87% 11% 2%
Service and support 84% 14% 2%
Warranties 80% 17% 4%

Deionization was the most common technique our readers used to remove relevant contaminants, with reverse osmosis and ultrafiltration coming second and third.

Distillation 11%
Deionization 27%
Reverse osmosis 20%
Activated carbon filtration 10%
Microporous filtration 6%
Ultrafiltration 18%
Ultraviolet oxidation 3%
Other 5%

The purity levels of ASTM Standards lab water required by survey respondents:

ASTM Type I 52%
ASTM Type II 30%
ASTM Type III 9%
Other 9%

Recently Released water purification systems

PURELAB Flex 3 & 4
• Ensure accurate, consistent results
• Both systems deliver up to 10 liters of ultrapure water per day and up to 2 liters per minute
• The flex 3 delivers ultrapure water direct from potable tap water and the flex 4 requires a pre-purified feed



Elix® Essential
• Complement company’s existing Elix® range
• Electrodeionization technology ensures consistently pure water quality
• Easy to use and economical
• Provide flow rates of 3, 5, 10 or 15 liters of water per hour

EMD Millipore


Fi-Streem Distillation Accessories
• Line of accessories now includes additional storage carboys and a distribution accessory
• Give customers more storage options to ensure that pure water is readily available in the lab
• New water storage carboys are configured to operate automatically when connected to Fi-Streem Stills • The distribution accessory kit connects to the B00121 LabStrong
40 liter storage tank


Touch Screen Gemini Series
• Bright, easy to read 3.5” touch panel provides an easy interface for dispensing and programming up to four batches • Resistivity is clearly displayed with system operation status
• The display turns red to alert the user to alarm conditions

Aries FilterWorks

Water Purification System Manufacturers

Aqua Solutions www.aquaa.com
Aries Filterworks www.arieswater.com
Aurora Biomed www.aurorabiomed.com
ELGA www.elgalabwater.com
Labconco www.labconco.com
EMD Millipore www.millipore.com
Pall Corporation www.pall.com
Sartorius Stedim www.sartorius-stedim.com
Siemens www.water.siemens.com
Thermo Fisher Scientific www.thermoscientific.com
Z-Sc1 www.z-sc1.com