High Purity (Labs, Hospitals, etc.)

Watertiger has extensive experience designing and installing high-purity water treatment systems for a variety of applications including, but not limited to, the following: laboratories, hospitals, factories, fuel-cell applications, the NASA space program, military ops, field medical services, etc.

If your operation requires a reliable source of high-purity water and a trustworthy distribution system to incorporate with the treatment system, contact our office for a range of solutions.


Minncare Cold Sterilant

Minncare Cold Sterilant is a peracetic acid solution developed for use on reverse osmosis (RO) membranes and their associated distribution systems. Peracetic acid formulations were developed by Minntech Corporation in 1976 and are currently being used in a wide variety of applications. Mar Cor Purification distributes Minncare Cold Sterilant to the Medical, Pharmaceutical and Industrial Marketplace.

Superior Biocidal Activity

Protect reverse osmosis membranes and their associated distribution systems against short and long-term bacterial problems. Minncare Cold Sterilant is a powerful oxidant that stops organism growth by oxidizing microbial cell proteins and enzyme systems and effectively removes biofilms. Minncare Cold Sterilant provides a 6 log reduction of bacteria population at a 100X dilution (1%) within a 36-minute soak time. Elimination of bacterial contamination will help improve product quality and contribute to increased RO membrane life. Minncare Cold Sterilant may eliminate the need for acid cleaning of fouled membranes prior to disinfection in cases where transition metals, such as iron, are not present.

Biodegradable, Ease of Disposable, Compatible with TFC Membranes

Minncare Cold Sterilant is biodegradable and will decompose into oxygen, water and acetic acid. It poses no threat to municipal waste treatment plants. Residual test strips are available that accurately verify rinse-out levels of Minncare Cold Sterilant as low as one part per million.

Minncare Cold Sterilant gently and completely cleans membranes. Minntech peracetic acid formulations have been successfully used at hundreds of locations on thin film composite membranes and cellulose acetate membranes. Many of the applications have included extended soak times.  Minncare Cold Sterilant will disinfect membranes and protect against decreased flux that is commonly associated with the use of formaldehyde.

Minncare Cold Sterilant protects employees from exposure to toxic aldehyde vapors. Although proper care must be taken when handling concentrated Minncare Cold Sterilant, the use-dilution form requires no exceptional handling procedures.

Minncare Test Strips

Minncare Test Strips provide quick results with easy to read indicators. Use the Minncare 1% TS Test Strips as a pass/fail measurement for adequate concentration of sterilant after dilution. Then verify residual levels after rinse-out using Minncare Residual Test Strips. Minncare Peracetic Acid Test Strips represent the leading edge of test strip technology. Designed by the producers of Minncare Cold Sterilant, these test strips combine ease-of-use with precise results. Both the Minncare 1% TS and the Minncare Residual Test Strips may be used up to and including the last day of the month indicated by the expiration printed on the container even after opening. There is no need to separately record and verify container opening dates.

Minncare 1% Test Strips verify adequate concentration of a 1% Minncare solution during sanitization of your high purity water system. These convenient dip-and-read strips can be used at any test port in your system to provide an accurate pass/fail measurement of Minncare solution. Minncare Residual Test Strips are easy to use and are conveniently packaged 100 test strips per container. Each strip has a “reaction zone” pad located at one end of the strip. When stored and used properly, the test strip pad can indicate residual Minncare levels as low as 1 part per million (ppm). The reaction zones are set to provide six different reading levels at 100, 30, 10, 3, 1 and 0 (zero) parts per million.

Download a Minncare Brochure here
Learn about the Chemistry of Minncare


Minncare Dry Fog Sterilization for Clean Rooms


The Minncare Dry Fog system provides an easy to use, high technology solution for clean room and critical area fogging. The combination of our highly effective Minncare cold sterilant chemical and our state of the art Dry Fog delivery system enables users to rapidly and safely deliver Minncare vapor to even the most complex areas. Its sanitary and autoclavable design will permit its use in the most critical areas within pharmaceutical and other industries concerned with maintaining the utmost levels of sterility. The location and action of the dry fogging head at the highest point of the equipment allows for rapid vapor dispersion and ensures that the most distant areas are reached effectively.

The lack of toxic aldehyde vapors results in extremely short process times—over 95% faster than some conventional systems. This means less production downtime and lower total costs. Typically, the entire process can be completed in less than 3 hours, depending upon room size and ventilation system efficiency, compared to up to 3-5 days with some conventional systems.

The Minncare Dry Fog equipment is designed to produce fine droplets that average 7.5 microns in diameter which will ensure even dispersion of the Minncare solution throughout the room. These small droplets will tend to bounce off of solid surfaces and thus avoid excessive condensation, corrosion and surface wetting issues associated with systems producing larger droplets. The small droplets evaporate and the vapor will penetrate normally inaccessible areas and lead to a more effective process.

The system is easily adaptable to differing room dimensions and configurations and can be adjusted to suit any room height. It is readily transportable and can be used in multiple locations, needing only a compressed air source to operate. It will deliver an adequate solution quantity to rooms up to 35,000ft3 (1000m3). Beyond this size, multiple machines may be required.

Minncare is a peracetic acid and hydrogen peroxide based proprietary chemistry developed by Minntech for optimized biocidal efficacy. It is registered by the EPA for use as a fog to enhance existing cleaning and disinfection process. It is fully biodegradable and will leave no measurable air residuals once the room has been fully ventilated. Minncare contains only pharmaceutical quality raw materials, limiting the introduction of any undesirable components into the clean room environment.

Download a Minncare Dry Fog Brochure here