How Water Purification Works & How We Save You Time & Money

Excedr - Lab Water Purification System

Excedr’s lease program can source all instrument types and accommodate any brand preferences you might have. Request a water purification system lease estimate today and see how leasing can discount your purifier’s costs.

All equipment brands/models are available

The Advantages of Excedr’s Water Purification System Leases:

  • Eliminates the upfront cost of purchasing equipment by spreading its cost over time
  • Minimizes equipment downtime with included complete repair coverage and preventive maintenance
  • Takes advantage of potentially 100% tax deductible* payments, providing you significant cash-savings
  • Expedites the administrative work needed for instrument procurement and logistics
  • Conserves working capital,  enabling you to reinvest in your core business and operations (staffing, inventory, marketing/sales, etc.)
  • Accommodates all manufacturer and model preferences

*Please consult your tax advisor to determine the full tax implications of leasing equipment.

a microplate well leaning against a graduated cylinder on top of glassware storage

Water is one of the most commonly used solvents in a life science laboratory.

It is the basis for many buffers, reagents, and cell cultures, and is regularly used for washing and cleaning applications. This means the water you use in your lab needs to be as sterile as possible in order to prevent contamination. If you use tap water, you will want to meet every standard regarding water purity to ensure it is free of organics and ultra-pure.

While tap water is considered somewhat pure, there are some classes of contaminants that can create problems for many laboratory tasks. This can include a range of particulates such as colloids, bacterias, gases, inorganic ions like zinc, and organics like total organic carbon (TOC).

In fact, TOC is one of the most essential factors to measure for in your water, and remove using a water purification system. Meeting strict Total Organic Carbon (TOC) water standards requirements is extremely vital, and TOC testing is becoming increasingly standard in validated water purification systems. The United States Pharmacopeia (USP) and ASTM international list TOC as one of the key substances to test for in any purified water system.

There are four water grades, or types, that are used to classify the quality or purity of water:

  • Ultrapure water (type I)
  • General laboratory grade water (type II)
  • Primary grade water (type III)
  • Feed water

Each type of water has to undergo various processes to reach a specific standard of purity, including carbon filtering, microfiltration, reverse osmosis, and more. The water grade reflects which type can be used for in laboratories. In other words, water purity classification helps scientists choose the quality of water that fits their specific needs.

High purity water has many uses in clinical diagnostics and medical research, as well as pharmaceutical control and R&D. The semiconductor and engineering industries also benefit from water purification.

If water quality is important to your work, having the proper water purification system installed is paramount. These systems, often referred to as high flow water purification systems, remove chemical contaminants through various techniques, such as de-ionization (DI) and reverse osmosis, and can come equipped with ultraviolet (UV) treatment systems.

The system can also range in capacity, from high capacity single tanks to dual-tank setups, supplying up to 40 liters per minute (L/min). High flow lab water system are typically equipped to handle ordinary tap water or pretreated water for most required laboratory applications.

Applied Techniques & High Flow Water Purification System Price

a hand face up balancing a screw on its index finger

Water purification systems use a variety of techniques to filter water, which are often combined to maximize performance. Understanding the various techniques used can help inform you on which system is best suited for your application needs.

Here is a list of just a small portion of techniques used to purify water:


This is a commonly used method that creates distilled water, which is considered very pure. Distillation involves boiling water and condensing the vapors into a sterilized container, effectively leaving behind any solid contaminants. Many water systems available offer a distillation method.



This technique applies a chemical process involving a specific type of resin or polymer called ion-exchange resin. The insoluble matrix acts as a medium to deionize water. Applying this exchange allows for both anions and cations to be replaced with hydrogen and hydroxide ions.

This removes mineral ions like sodium, iron, calcium, sulfate, and chloride from the water. Once the dissolved minerals have been replaced, the new ions are combined to form water. This can also be accomplished using an inexpensive method called electrodeionization, a technology that utilizes electricity alongside ion-exchange resin and membranes to deionize water.


Carbon Filtering

This method applies activated carbon as a filter in the adsorption of impurities from an aqueous solution, effectively removing chemical elements like chlorine, particles such as sediment, and volatile organic compounds, organic chemicals that have high vapor pressure at room temperature. The pore structure of activated carbon works to trap any contaminant that needs to be removed.



Ultraviolet water purification is an extremely effective method for removing bacteria from water using germicidal ultraviolet light. The UV rays penetrate harmful pathogens in the water and destroy these microorganisms by disrupting their DNA.

Unlike water purification systems that use filtration to remove unwanted contaminants, UV treatment purifies the water without any use of filtration, so it is sometimes necessary to use both a filtration system and UV system to adequately treat water for use in experimentation. UV purification can treat water for a number of bacteria, including E. Coli, giardia, cholera, and hepatitis B.


Reverse Osmosis

This water purification process utilizes a partially permeable membrane to remove impurities. Applied pressure is used to overcome osmotic pressure in order to capture suspended and dissolved chemical contaminants as well as biological ones. This result occurs because the solute is retained on the pressurized side of the membrane while the pure solvent, in this case, water, is allowed to pass through to the other side.

Normally, the process of osmosis allows for a solvent to naturally pass through from an area of high water potential to low water potential, or solute concentration. By applying external pressure, this process is reversed. Reverse osmosis is used in conjunction with a variety of filtration methods that include microfiltration and ultrafiltration.


Ultrapure Water Purification System Leases to Fit Every Need

three shapes shown one after another: an erlenmeyer flask, boiling flask, and graduated cylinder

If you perform chromatography (such as HPLC), PCR, or any other method in your lab, then having high quality water on hand is essential. To achieve this, chances are you’ll want to have the proper purification system and consumables available in your lab space.

There are many different types of water purification systems on today’s market, some of which may offer multiple techniques combined into one system. These purification technologies offer solutions that will fit your demanding specifications, and can ensure quality control. And without one, you may face an endless array of problems. 

While acquiring a piece of equipment outright may present some hurdles for your company, leasing is a viable alternative. Excedr offers a comprehensive leasing program outfitted with preventative maintenance and repair coverage, so any problems you may face will be handled.

Reach out to us today and learn more about our leasing program and receive a lab water purification system lease estimate.

Operating Lease

This off-balance sheet financing structure provides three options at the end of the term. The lessee has the option to return the equipment to the lessor, renew at a discounted rate, or purchase the instrument for the fair market value. Monthly payments are also 100% tax deductible which yields additional monetary savings.


If you recently bought equipment, Excedr can offer you cash for your device and convert your purchase into a long-term rental. This is called a sale leaseback. If you’ve paid for equipment within the last ninety days, we can help you recoup your investment and allow you to make low monthly payments. This also frees up money in your budget rather than tying it down to a fixed asset.

Lab Water Purification System Manufacturers & Models
Learn More

Thermo Fisher Scientific:
Type 1 Ultrapure, Barnstead Type 1, Barnstead GenPure xCAD Plus, Barnstead GenPure, Barnstead MicroPure, Barnstead E-Pure, Barnstead Type 1/Type 2, Smart2Pure Pro, Smart2Pure 3 & 6, Smart2Pure 12, LabTower EDI, Pacific TII, LabTower TII, Barnstead Classic Stills, Barnstead Cabentized Stills, Dionex IC Pure, Reverse Osmosis Systems, Reverse Osmosis EDI Systems, Barnstead Pacific RO

Type 1 Lab Water Systems, Arium Ultrapure Water Systems, Arium Mini, Arium Mini Essential, Arium Mini Plus, Arium Mini UV, Mini Essential UV, Mini Plus UV, Type 2 Lab Water Systems, arium advance EDI, Type 3 Lab Water Systems, arium advance RO

WaterPro BT Benchtop System, WaterPro PS Polishing Systems, WaterPro RO Systems

Aqua Solutions, Inc.:
Type I Ultra-Pure Water 18.2 Meg, Type I Ultra-Pure 18.2 Meg RO+DI, Type II Pure Water >2 Meg, Type II Pure Water >2 Meg RO+DI, Reverse Osmosis

Millipore Sigma:
Milli-Q Type 1 Ultrapure Water, Milli-Q IQ 7000, Milli-Q IQ 7003/05/10/15, Milli-Q Direct, Milli-Q Reference, Super-Q, Milli-Q IQ Element, Elix Type 2 Pure Water, Mili-Q IX 7003/05/10/15, Milli-Q HX 7000, Elix Essential, Milli-Q HX 7000 SD, RiOs Type 3 RO Water, RiOs Essential, Milli-Q HR 7000, AFS CLRW Biomedical Water, AFS E, Milli-Q CLX 7000, AFS D, AFS

Elga LabWater:
PURELAB Quest, PURELAB Chorus 1 Complete, PURELAB Chorus 2+, PURELAB Chorus 1, PURELAB Chorus 2, PURELAB Chorus 3, PURELAB flex 1 & 2, PURELAB flex 3 & 4, PURELAB 5 & 6, CENTRA R60, CENTRA R120, CENTRA R200, CENTRA RDS, MEDICA R & MEDICA D 7/15, MEDICA EDI 7/15, MEDICA Pro-R & Pro-RE, MEDICA Pro EDI 60/120, MEDICA Pro-LPS, MEDICA R200, BIOPURE 7/15, BIOPURE 60/120, BIOPURE 200/300/600

US Water Systems, Inc.


Operating Capital Benefits

Operating Capital Benefits

Excedr's operating lease structure allows you to keep your business credit line open for expansions, staffing, and other operational expenses. Additionally, it strengthens the cash flow of your business and keeps cash reserves free for business development opportunities.

Effects on Credit

Effects on Credit

Leasing / renting provides you with non-dilutive financing and does not hinder your future borrowing ability. You're able to acquire the equipment you need without the baggage associated with traditional financing.

Speed of Approval

Speed of Approval

Excedr's program allows you to respond quickly as your need for equipment and technology arises. You can be approved with minimal documentation and have the equipment you need in operation and generating revenue for your business quickly.

Refurbished Equipment

Refurbished Equipment

Unlike traditional financing and leasing companies, the Excedr program can accommodate refurbished equipment in addition to demo units. If you are looking for additional cost-savings, we recommend considering this option.