Legionella Experts - Over 30 Years of Experience
DiHydro offers a cost-effective approach to pipe disinfection. Our pipe disinfection service provides flushing, chlorination, and testing - all performed by experienced DiHydro technicians. We have years of experience in protecting and restoring piping systems.
Detection, prevention and outbreak response using a team of experts
Rapid reponse
Turnkey implementation of disinfection
No disruption in building operation
Corrosion control
Long term infection control
DiHydro is The Solution To Your Pipe and Water Disinfection Problems
71 Years - Disinfection, Cleaning and Restoring Piping Systems
32 Years - Legionella Disinfection and Control
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DiHydro is experienced in solving water quality and piping system problems for...
Commercial Buildings
Apartment Complexes
Industrial Buildings
Cases of Waterborne Infection and Disease
2006 to 2009... The cases of waterborne infection and disease averaged 110,000 per year.
However, it is believed that the great majority of waterborne infection and disease cases go unreported. The Center for Disease Control (CDC) estimates the actual number of cases are 10+ times higher than reported.
Waterborne Disease
People suffering from the effects of waterborne disease may not even realize drinking water is the cause.
Hospital records examined between 2006 and 2009 indicate that a specific cause was determined in only 48% of the suspected cases of waterborne disease. When the specific cause is not looked for or identified, the offical hospital report will list the cause as gastroenteritis or "acute gastrointestianal illness of unknown origin."

In a flowing water system the cause of contamination can disappear before any sign of illness shows up.
Waterborne Disease in the News...

95% of All Legionnaires' Disease Cases and Outbreaks Have Been Traced to Building Water Supply Systems

Hospitals: Portable water systems, respiratory therapy equipment, shower heads, cooling tower, physical therapy baths, endoscopy sink
Spa: Whirlpool spas
Hotel: Humidification systems
Senior Building: Evaporative condensers
Grocery Store: Produce misting system
Tourist Lodges: Shower heads
Prison: Cooling tower
Why Are Hospitals, Nursing Homes and Senior Apartment Buildings, Large Apartment Buildings or Condos With Seasonal Occupancy More Susceptable to Legionnaires' Disease Bacteria?
Susceptable patient population
Moderate hot water temperatures
Large piping systems with very sporadic and random use
Low or no chlorine in the supply water piping system
Design of the domestic hot water system
Continuous removeling or new construction (hospitals)
Stagnant or low flow branch lines and fixtures
Four people died at Presbyterian University Hospital. Three additional people are critical from Legionnaires' Diease
One person died that works in a 20 floor office building in downtown Detroit and five additional people are critical from Legionnaires' Disease.
Top Five Myths Concerning Legionella Bacteria Control Within The Potable Water Piping System
Myth #1:    Most Legionella outbreaks originate in building heating & cooling systems

Although many Legionella outbreaks have been attributed to building heating and cooling systems, literature indicates that 92% of all Legionella outbreaks are related to a building's domestic hot water system. The domestic hot water system in buildings such as hospitals, schools, nursing homes, etc. provides an excellent environment for LDB. Warm water temperatures, stagnant areas, dead ends, pipe corrosion, etc. create the essential ingredients for potential bacteria growth. The movement of continuously circulated water ensures a supply of nutrients for the bacteria.
Myth #2:    Replacing the hot water storage tank with an instantaneous water heater will prevent recontamination

Even if the storage tank is removed, the piping system remains the same, the mains and branch lines remain the same. All the problems (dead ends, stagnant areas, corrosion, etc.) in the piping system remain the same. The forced recirculation system picks up bacteria sloughed off from stagnant or little used areas and distributes that bacteria throughout the piping system. Continuous supplemental treatment with chlorine keeps the return lines from becoming reinfected.
Myth #3    A high temperature flush is an inexpensive and effective form of disinfection

A high temperature flush does kill the bacteria if you can get the temperature high enough and if you can draw 160°F water throughout the whole system. It is not a permanent solution - only temporary cure. Unless you can maintain the high temperature and bring 160°F water to each and every fixture, dead end and stagnant areas in the building, the bacteria will be reseeded. Consider the cost in terms of manpower and energy. Consider the possibility of scalding. Consider the effect the high temperature will have on the corrosion and scale existing in your piping system.
Myth #4    Legionnaires' Disease is difficult and expensive to control

LDB can be easily controlled by continuous injection of chlorine. As you know, chlorine is effective and universally accepted as a disinfectant. It is inexpensive and readily available. (See additional information in answer to Myth #5)
Myth #5    Continuous supplemental chlorination to control Legionella is always corrosive to the water supply piping system

DiHydro developed a chemical process using a safe, food-grade item that can be added to and injected along with chlorine to protect the pipe surface. It seals it, coats it, isolates the bacteria, enhances the disinfection process and provides protection against corrosion that would normally be caused by continuous chlorine injection. DiHydro's Corrosion Control Program also controls leaks, rust and scale in galvanized piping, pinholing in copper piping and reduces lead in the water supply.
How Can Legionella Bacteria in a Building Water Supply Be Controlled?
Establish and maintain a testing and monitoring system
Initiate a chemcial treatment program to control corrosion and bacteria
Establish and maintain a chlorine residual level of 2.5 to 3.0 ppm
Locate and correct stagnant or low flow branch lines
Initiate a fixture flushing program (house keeping) that is tied to an ongoing testing and monitoring program