Frequently Asked Questions
How do we get started?
We start with a conversation, so we can make sure we understand your requirements and you understand how we work. We will then provide you with a comprehensive written proposal, including scope, pricing and timetable.
What do you do first?
First, we visit your facility. We meet with your team, learn as much as possible about your needs and objectives and challenges and, to the extent possible, answer your questions. Then we evaluate your plumbing system. Then we prepare a memorandum outlining any preparatory work needed to accommodate our equipment installation—e.g., addition of taps, replacement of plumbing components, piping modifications. We coordinate closely with the authority having jurisdiction, usually the health department, to make sure everything we do meets compliance requirements. Next, we install our equipment and implement site-specific treatment protocols. We closely monitor and record key parameters, and prepare written reports summarizing the data. We also have an electronic client portal so that you can access your monitoring data for yourself.
What is the purpose of remedial treatment?
The purpose of remedial treatment is to establish microbial control by removing as much of the biofilm as possible, and killing of biofilm-associated (sessile) pathogens.
What is the purpose of continuous supplemental disinfection?
The purpose of continuous supplemental disinfection is to maintain microbial control by inhibiting biofilm formation and killing free-floating (planktonic) pathogens.
Why do you (most often) use chlorine for continuous supplemental disinfection?
Chlorine application and measurement are relatively simple, and the chemistry of chlorine is well understood. Chlorine, used to treat public water supplies for over 100 years, has proven reliable for safe, broad-spectrum disinfection. Properly applied, continuous supplemental disinfection with chlorine has few unintended consequences. In a small percentage of cases, where the water supplied to the building is not suitable for treatment with chlorine, chlorine dioxide is the next alternative we consider. But, in most cases, chlorine dioxide is not needed and the much-higher cost (relative to chlorine) is not justified. We have found that some alternatives for treating potable water in buildings, such as copper-silver ionization (CSI), are not reliable. Other alternatives such as monochloramine, can have serious unintended consequences that outweigh any benefit they might provide.
Why do you usually treat only the domestic hot water system?
Hot water systems are more prone to colonization by Legionella and other biofilm-associated pathogens, due primarily to temperature gradients and flow characteristics that result in growth-supportive conditions. Sometimes, however, cold water systems also require treatment.
Is ongoing treatment always necessary?
Ongoing treatment is not always necessary. There are a number of site-specific factors that must be carefully considered in determining the appropriate treatment protocols and the duration of treatment for any particular facility.
How long will we have to treat?
There are a number of site-specific factors that must be carefully considered in determining the duration of treatment for any particular facility. Sometimes, these factors change over time; that’s why we regularly review our treatment programs with our clients and make necessary adjustments along the way. Terminating treatment if no longer needed is always an option we consider.
Do you have client references?
Do we have client references! Out of respect for client confidentiality, we don’t publish the names of our clients. However, we have a number of clients that have given their express permission for us to provide their contact information to prospective new clients who want references.