Showcasing Energy-Saving Products and Expanded Market Reach at 2014 ASPE

Energy efficient technology solution, GreenFlo™, and more to be highlighted at the 2014 Engineered Plumbing Exposition.

QuantumFlo racing

QuantumFlo is attending the biggest event in the plumbing industry, American Society of Plumbing Engineers (ASPE – EPE2014) Convention and Exposition. The convention brings together the best in plumbing design and is celebrating its fiftieth anniversary this year. It takes place September 20-24 in Chicago, Illinois. Attendees can meet the leader in manufacturing and distribution of advanced, variable speed controlled, packaged pump systems, QuantumFlo, at our booth, #625.

We will be showcasing our latest energy-saving solution, GreenFlo™. GreenFlo™ is an advanced algorithm developed in response to recent energy consumption regulations and comes integrated in our iQFlo™ technology. iQFlo™ was selected as a part of ASPE’s New Product Innovation Showcase 2012 and is a state-of-the-art software that ensures each QuantumFlo pump system performs as energy efficiently as possible. Our CEO Dave Carrier looks forward to QuantumFlo’s showcase at the convention and exposition stating, “We’re excited about the advancements we’ve made since ASPE 2012. Developing GreenFlo™ has taken iQFlo™ one step further, as we continue growing our pump technology. We also recently expanded our focus in the turf and irrigation industry and look forward to the future there.”

Other products we are showcasing include the Atom line of pre-packed pumps. The Atom is a water pressure booster system for homes and businesses and comes entirely pre-assembled for easy installation. It solves water pressure issues using smart technology to monitor pressure for an enhanced booster experience. We will also show our range of commercial VFD boosters for high or low pressure including Genius E, Genius V, WisperFlo, and Prodigy.

In addition to highlighting this technology, QuantumFlo proudly sponsors drag racing driver Jacob Otto, whose dragster will be on display at our booth. ASPE attendees won’t want to miss viewing and snapping a photo with his incredible 1,000 horsepower vehicle. More than just a photo opportunity, attendees can also enter to win a drawing for one of two iPads. With so much to see and do, everyone at 2014 ASPE should be stopping by to see the QuantumFlo team, our advanced technology products, and dragster race car at booth #625 this September.

Learn more about QuantumFlo’s sponsored dragster and racing schedule here.

QuantumFlo Honored by GrowFL as a Florida Company to Watch

QuantumFlo is excited to announce we have been selected as a finalist for the GrowFL Florida Companies to Watch Awards for 2014. We are honored to receive this recognition for our contribution as a Florida-based business. We look forward to attending the awards dinner and reception, and hope to be among the 50 winners on October 23rd at Hard Rock Live Orlando.


GrowFL is an economic development program from the state government with support from University of Central Florida, Wells Fargo, and more. It is focused on aiding “second-stage” entrepreneurial companies. A second-stage entrepreneurial company is one that is between a startup and a large firm, has greater than 10 employees and less than 100 employees and is ready to grow.

Florida Companies to Watch

Florida Companies to Watch is presented by GrowFL, the Florida Economic Gardening Institute at University of Central Florida, and Edward Lowe Foundation this year. QuantumFlo was selected from hundreds of nominees as one of about 90 finalists for the event’s fourth anniversary awards ceremony. The award of Florida Companies to Watch recognizes and honors “second-stage companies that demonstrate high performance in the marketplace with innovative strategies and processes”. We are pleased to be acknowledged for these qualities.

QuantumFlo and the Community

QuantumFlo has always worked to be a high-achieving entrepreneurial business. We have positively impacted our industry by designing the most advanced technology for pump systems all the while nurturing our employees’ professional development. This year we have expanded our focus to the turf and irrigation industry and have added new managers and representatives to grow this extended endeavor for our business. These actions have benefitted us not just in product and industry growth, but also as a company comprised of innovative individuals as a whole.

Beyond our company walls we have influenced the community we love being a part of here in Central Florida. Our professional successes led to us creating jobs and feeding the local economy. We uphold the values of GrowFL and are glad to be included as one of their Florida Companies to Watch. We look forward to the ceremony, reception, and winners’ announcement at Hard Rock Live on October 23rd.

To learn more about the products and services provided by 2014 Florida Companies to Watch award finalist QuantumFlo, contact us today.


Explaining NSF 61 and NSF 372 for Plumbing Systems

The “Reduction of Lead in Drinking Water Act” was enacted on January 4, 2011 and signed by President Obama. The purpose of this Act was to amend Section 1417 of the Safe Drinking Water Act (“SDWA” or “the Act”). The Act established a prospective effective date of January 4, 2014, which provided a three-year time frame for affected parties to transition to the new requirements.

Since 1986, the Safe Drinking Water Act has prohibited the use of certain items that are not lead free and since 1996 the Act has made it unlawful for anyone to introduce into commerce items that are not lead free. The primary purpose of the 2011 change was to lower the maximum lead content of the wetted surfaces of plumbing products such as pipes, pipe fittings, plumbing fittings and fixtures from 8.0% to a weighted average of 0.25%. The Act also established a statutory method for the calculation of lead content (now known as Annex G). Finally, to eliminate the requirement that lead free products be in compliance with voluntary standards established in accordance with SDWA 1417(e) for leaching of lead from new plumbing fittings and fixtures. Since the voluntary standard was eliminated, this made it clear to the industry that the lead content requirements would now be mandated, which would require “Third-Party Certification” by a “Nationally Recognized Testing Laboratory”.


Since the Act required a standard be set to determine compliance, NSF 61 was developed to provide a standard for the approval of such products to facilitate compliance. As NSF 61 has been modified over the years, a number of additional clarifications of compliant materials and methods were created. These materials and methods are known as Annex G. At about the same time that Annex G was evolving, California passed a separate State Law known as AB 1953 which required both NSF 61 compliance, as well as a quality standard and revised the lead content down to “lead-free” as defined by the standard. Once the California Law was in place, and with the imminent mandate of January 2014 on the horizon, a trickle-down effect started to occur and consultants, contractors and manufacturers either began the certification process or were well under way. The new method for determining this “lead free” (a weighted average of .025%) mandate has become known as NSF 372.


NSF 372 is NOT a standard. It is a method of measurement used to comply with the standard. Therefore, anything that has a full NSF 61 Certification has been certified to NSF 61 via the methods and values defined in NSF 372. Since NSF 372 actually mirrors the California AB1953 Law, it will eventually replace the language. This means that to have a certification by a third-party laboratory which says that your product is in compliance with CA AB1953, you have already complied with the same standards as defined by NSF 372, so the certification is semantics.

Misrepresenting the STANDARD

SDWA Section 1417 was revised to put teeth into the Act from a legal standpoint by:

• Lowering the maximum lead content of the wetted surface of plumbing products such as pipes, fittings, plumbing fittings and fixtures from 8.0% weighted average (1986) to 0.25%.
• Establish a statutory method for the calculation of lead content. (which became NSF 372)
• Eliminate the requirement that lead free products be in compliance with voluntary standards established in accordance with SDWA(e) for leaching of lead from new plumbing fittings and fixtures.

You will notice that the Act which went into effect January 4, 2014 now makes it UNLAWFUL for non-compliance! Since this is a FEDERAL mandate, it is automatically enforced without the need for adoption by any local jurisdiction. This is why it became mandatory that all products be in compliance with NSF 61 in January of 2014. This is also backed by the Uniform Plumbing Code (UPC) and International Plumbing Code (IPC) which recognize and enforce the NSF 61 Standard in their associated codes. Both the IPC and UPC DO NOT recognize NSF 372 as a standard since it is part of the procedure to facilitate certification to NSF 61. You will also note that the SDWA Section 1417 recognizes all plumbing devices, including pipes, fittings and all components within the plumbing system from “source to tap”. In the case of a commercial building, the law is applied to anything in the plumbing system from the water meter to the last fixture in the building.

Boosters are now considered one of these plumbing devices which are pre-fabricated and therefore must be compliant as a complete system. The only way to guarantee that standards are met was to certify the “system” rather than the sum of all parts. This means that the system is now part of a certification program which requires the manufacturer to document the materials of construction and have the “system” tested as a complete device within the plumbing system. Simply using NSF Certified valves, pumps, fittings, tubing, etc. is not sufficient because the system has not passed the NSF 61 Standard in accordance with NSF 372 requirements.

As the deadline has approached and passed, some manufacturers did not begin compliance testing on their products and are now trying to scramble to get testing. Unfortunately, there are now Federal Statutes being violated as these manufacturers have not taken the statue seriously or they feel that enforcement would be lax. The booster system MUST be certified as a complete system with all passageway components assessed and certified to the NSF 61 standard. This is the certification that QuantumFlo holds on all of our products and it is the ONLY reason that label can be affixed to the controller (signifying that the “system” and not the “component” are certified). Additional components within our system will sometimes have additional NSF Labels themselves, but these components are highly regulated by our certification and any change in these components must be documented and re-certified with the laboratory, particularly if their chemical makeup changes. These components include:

1. Coatings
2. Pipes
3. Valves
4. Gaskets
5. Headers
6. Fittings


ENGINEERS, CONTRACTORS and OWNERS, BEWARE! There are manufacturers out there who continue to try to game the system, but their irresponsibility can easily become YOUR LOSS! Here is an excerpt from the EPA in a summary statement made about the SDWA Section 1417.

Since 1986, the Safe Drinking Water Act (“SDWA” or “the Act”) has prohibited the use of certain items that are not lead free and since 1996 the Act has made it unlawful for anyone to introduce into commerce items that are not lead free.

ANY MANUFACTURER WHO IS MISLEADING THEIR CUSTOMERS INTO BELIEVING THAT THEIR SYSTEM IS CERTIFIED TO THE STANDARD IS VIOLATING FEDERAL LAW AS OF JANUARY 4, 2014! There is no nice way to say this! Unfortunately, this irresponsible behavior has become commonplace within the industry as there have been many manufacturers who have put off certification believing the enforcement would be low.

I spoke with our third party lab regarding the testing of components and systems and this is what they said:

Manufacturers can request the testing and certification of either a component or system. If a client chooses to only certify a component, then only the component can be labeled and advertised as certified.

To clarify, standard NSF/ANSI 61 addresses several different types of potential contaminants, but not specifically lead content. Low lead requirements are defined separately in three different requirements:

• Federal lead law: “Reduction of Lead in Drinking Water Act” – Effective January 4, 2014
• California lead law: “The California health & Safety Code 116875”
• NSF/ANSI 372: Standard, not a law, providing test methods.
It is important to note that having compliance to NSF/ANSI 372 does not substitute certification to either the Federal or CA State lead laws.

If a manufacturer has a SYSTEM certification, this will be obvious to the user if they look at the certification document provided by the test laboratory. The QuantumFlo Certification is, without question, perfectly clear. Here is an excerpt from that portion:

quantum flo quantum flo 1

If the certification does NOT show the complete series of product, BE CAREFUL! The manufacturer may have ONLY certified a component and NOT the system. This does NOT make them compliant as a system! As mentioned previously, there are many different components within the system in addition to many different laboratory and chemical tests required by NSF 61 which make up the compliance to the standard. Any product that represents their system as compliant and has not completed system testing is in violation of Federal law.


When it comes to “booster systems” the law is very clear. Since the SDWA references ANY device within the potable water system, the booster is, by this measure within the potable water system. Here is an excerpt from the EPA, Summary of Lead in Drinking Water Act and Frequently Asked Questions;

EPA interprets “potable services” to be services or applications that provide water suitable for human ingestion (e.g. drinking, teeth brushing, food preparation, dishwashing, maintaining oral hygiene).

There is only one solution for a device which was installed in the potable water system that cannot pass compliance; replacement of the entire device. Any item that is/was installed after the January 4, 2014 deadline that does not meet the definition and is not certified accordingly must be removed from the system. In many cases, the manufacturer is not the loser, the OWNER, ENGINEER and CONTRACTOR are. I am certain that this will likely create many new lawsuits that will be fought between these parties as to who is responsible for the violation and subsequently, who will pay for the labor and product cost to completely replace new equipment that does not meet the standard.

The EPA further defines the term “introduction into commerce,” which is the term used in SDWA Section 1417(a)(3).

In 1998, after Section 1417 was amended to prohibit the introduction into commerce of any pipes, pipe or plumbing fittings or fixtures, EPA issued guidance on the enforcement and implementation of Section 1417. In the guidance, EPA explained that it “interprets ‘introduce into commerce’ as used in Section 1417 of SDWA to cover not only the initial offering of products for sale but also the sale or distribution from an inventory of products.” (WSG #129, Sept. 24, 1998, at 2).

At the end of the day, certification to the standard is about proof. If the manufacturer has not passed product testing in accordance with the procedures set forth in the SDWA and NSF 372, they are NOT APPROVED and are excluded from providing ANY product for potable water service. The danger to all participants is substantial as the engineer specifies and accepts the product, the contractor installs the noncompliant equipment, and the manufacturer and his representative participate in the ruse by misrepresenting the product to all parties. You can verify product compliance for QuantumFlo products by navigating to the following link, selecting Search by Listee and typing in our name:


Welcome Our New Turf and Landscape Sales Manager

Gordon Van Dyke is our brand new Turf and Landscape Sales Manager here at QuantumFlo. He will help us grow business within commercial and industrial markets and improve the product line to meet the needs of turf and landscape irrigation in various regions throughout the United States. Gordon will lead planned growth for us in the turf and landscape market, building on our reputation as an advanced leader in pump technology.

He brings over 15 years of experience in sales and product development. For the last five years, he’s served as the Sr. Product Manager for Commercial Pumps and Global Sales Manager, at Rain Bird. Before working at Rain Bird, Gordon spent 10 years in General Electric’s Plastic Division, as the Global Technical Manager for new products. He holds a degree in Electrical and Instrumentation Engineering from Cumbernauld College in Scotland, as well as a Business Management Certification from GE’s Crotonville Academy. This unique combination of experience in sales and product, along with his strong education background will allow Gordon to advance our company’s footprint in the turf and landscape irrigation market. Welcome to the team, Gordon!

QuantumFlo Releases GreenFlo™ to Meet Energy Standard for Buildings

greenflo-eblastWe are now helping building owners and supervisors meet growing regulations and standards with GreenFlo™, an algorithm solution that has been added into the software for our packaged pump systems and allows for low water flow detection and the necessary corresponding pump adjustments.

In October, the ANSI/ASHRAE/IES Standard 90.1 – 2010, or “Energy Standard for Buildings” as it’s commonly known, continued the focus on energy consumption on project sites by requiring buildings to have some kind of logic circuit that detects low water flow and adjust pumps accordingly. We have taken another step forward in pump technology with GreenFlo™, which addresses the new standards and integrates with our industry-leading software solution, iQFlo™.

The updates will require a choice between two types of systems to meet the regulations for building supervisors and property owners. They can either get a transducer mounted by a contractor at the remote point in the field or provide an algorithm within the system to simulate the actions of a transducer. GreenFlo™ is an advanced version of the latter of the two choices, simplifying the cost and using superior logic strategy to go above and beyond the new standards.

GreenFlo™ is an algorithm built into the current iQFlo™ software package, providing complete automation without any additional costs for a contractor. It takes advantage of our superior logic strategy with high speed ModBus RTU native controls and streaming data, requiring no other equipment costs.

This is just the latest way that we are striving to assert ourselves as the leader in pressure boosting and controls technologies, as we stay committed to energy efficiency, sustainable design, superior workmanship quality and industry leadership.

Interested in GreenFlo™ as an energy solution for your pump systems? CLICK HERE to contact us or locate a representative in your area.

Introducing Einstein 2.0, The New Design for Our Pump Sizing and Selection Tool

QF EinIntroducing Einstein 2.0, our advanced online sizing and selection tool, an updated version of our already popular program, which allows end users to find the pump solutions they need with a new look and experience.

The updated Einstein 2.0 was completed with the end user in mind. The program has a new interface that is simple to use and allows users to find the selections they need in minutes. Streamlined from the previous Einstein program, user experience has been enhanced to do much more than just speed up the process of finding a pump solution.

With the new appearance, users can benefit from the new design’s ability to help them understand why the selected pump solutions are right for their project needs. The sizing process for pumps can often be difficult to understand, but Einstein 2.0 combines a variety of important specs from the user with the new, easily-navigated interface to find the right solution.

Einstein 2.0 uses project information such as building height, suction pressure, quantity and fixture types, and voltage to determine the proper sizing and selection for a pump product in just a few minutes.

The design update was developed as a follow-up to the original Einstein selection program, which was already helping companies and users from all over find pump solutions online. We’ve been working throughout the past year to develop the newest phase of the program to not only speed up the process of sizing, but also to create a user experience that is informative and simple.

Users of the original Einstein program can utilize the new, advanced design by simply logging in on the QuantumFlo website. Just as quickly, new and prospective users can enroll on the same website and start entering their project descriptions to find a product to fit their needs within minutes of visiting.

Breaking the Hydro-pneumatic Habit for Boosters

QFUFor some strange reason that is beyond my comprehension, some designers and consultants seem to have an affinity for hydro-pneumatic tanks.  When I ask for a reason, it is always the same; I need a hydro tank for shutdown of my booster system.  Since this is the first of a series of re-education topics on the application of 21st Century pumping technologies for 21st Century Problems, I thought I would open the series with this very provocative subject that will not go quietly into the night.

Don’t get me wrong!  I do not have an axe to grind against these devices.  In many cases, tanks are a necessary component for the proper installation of piping systems for Plumbing, HVAC and other applications.  I just have a problem with them being used for “shut-down” on a booster system.  The fact of the matter is these tanks DO NOT enhance shutdown on modern variable speed boosters.  In fact, they do NOTHING, and that is the point of this article.  There WAS a time, however, that these were necessary components in constant-speed booster systems simply due to the fact that constant speed systems are not very energy-effective, so the tank was an “enhancement” to shut-down, but NOT required, per se.  Let’s look at the purpose of the tanks, which will help us understand why they seem to persist even in modern-day designs.


Constant speed booster systems waste energy!  This is a fact that all manufacturers have understood from day one.  A typical booster system is churning away in the basement of a building for the convenience of the user at the other end of a fixture, at any given time.  Boosters have (essentially) a simple job; they “charge” the riser with pressurized water so that when a fixture is opened on an upper floor, the water is available immediately for the user.  Since these times of usage can be sporadic, there is simply no way to know when a user is going to decide that “Mother Nature” is calling, so the riser must be charged and ready.  This reality has its inherent “inefficiencies” since many times throughout the day, the pump must either re-start to replenish any lost water in the riser or continue to run as the water is disbursed to the fixture throughout the day.  Sometimes these “occasional” loads can last throughout the day, so manufacturers began to realize that this run-time was costing money.  About this time, the hydro-pneumatic tank was developed and packagers began to use the tanks as a way of “storing” this pumped energy so that the pump could be turned off during these low load conditions.   This technique worked rather effectively until the advent of variable speed pressure control.


Hydro-pneumatic tanks or bladder tanks work effectively if any of (2) conditions exist.

  1. There is a high differential pressure at the inlet of the tank (i.e. Cut in and Cut out)
  2. There is a relatively low pre-charge pressure when the cycle begins

The problem is that as these booster systems become more and more accurate in maintaining constant pressure, the first of these conditions above becomes harder and harder to meet.  Without a differential pressure at the tank inlet, there can be NO water storage!  The advent of variable speed pressure control meant (2) things to the industry.

  1. Differential pressure is (essentially) eliminated in the plumbing system making tanks useless.
  2. Energy reduction due to constant pressure maintenance created a far greater option for energy savings by regulating pump speed.

What many consultants, who still insist on these tanks forget, is that the hydro-pneumatic tank requires a pre-charge EQUAL to the cut-in of the water pressure before a single drop of water is stored!  This allows the tank to use the physics of Boyles Law to store energy in the tank as the pressure is raised proportionately to the fill pressure.  This means that whatever you pre-charge your tank to, the final pre-charge will be equal to the cut-out pressure of the pump when it stops filling the tank.  In order to make the tank work effectively and completely empty, however, you must start with a pre-charge equal to the start pressure (call value) of the pump!  By getting the pre-charge right, you avoid the possibility of a “dead-leg” due to water never exiting the tank before the pump turns back on again.  This does not provide much room for storage as the storage volume is based on the cut-in pressure, the cut-out pressure and the total volume of the tank.  As a rule of thumb, I suggest that a properly-sized hydro-pneumatic tank will store about 10% of its total volume when applied to a constant speed booster with (at least) a 10 PSI differential.  Unfortunately, this is not the case of a variable speed booster!


Since the primary goal of a variable speed booster system is to maintain a constant pressure by varying pump speed, VFD systems do not inherently possess a differential pressure on the control-side (discharge) of the system!  The whole concept of variable speed boosting is to adjust the speed to maintain pressure, not to store the overage!  The very nature of variable speed pressure boosting does not even consider the application of a hydro-pneumatic tank for pressure storage!  By changing the speed of the pump, the cost savings far outweighs any meager amount of storage that a tank could store in a constant speed application, making variable speed systems cost effective while they are running, not during short shutdown periods.  Furthermore, the cost savings far outweigh the cost of running a constant speed pump at a higher voltage and amperage for longer periods of time just to store about 10% tank volume.  With this small amount of storage; the shutdown time is very short.

Unfortunately, we still see these tanks on current variable speed designs today.  Unfortunately the use of these tanks for current-day VFD applications is misleading as these tanks are NOT designed for any storage whatsoever, they are designed to accommodate the application of (less than state of the art) old PID controllers.  Since these tanks still exist on VFD applications, the assumption is that they are performing the same service as they were on constant speed systems, but that could not be further from the truth.  VFD systems that utilized hydro-pneumatic tanks are using them for a completely different purpose, to sense low flow!


There still appears to be a contingent in the industry that insists that the laws of physics no longer apply to the world and that hydro-pneumatic tanks can be used and are (in fact) necessary on variable speed booster systems which have no differential pressure.  Perhaps the problem here is NOT the “physics” but rather, a dirty little secret that some don’t care to discuss.  Some manufacturers still use these tanks because of an inherent flaw in the design of their drives PID; the inability of the drive to sense when there is a no-flow condition.    PID (proportional, integral, derivative) control is the algorithm inside the drive itself that many call the “anti-hunting” software.  This algorithm takes values from a variety of electronic sensors built into the drive to determine either how fast or slow to run or even to run at all.  Over the years, these devices have become smarter and smarter and (some manufacturers) have even been able to determine when there is no longer flow across the pump, much like the QuantumFlo iQFlo™ program has done in “award-winning” fashion!  Unfortunately, some of these technologies have not changed in 10-15 years such as the integral motor-drives which some manufacturers still produce.  The PID in these devices is old and slow and (in many cases) it cannot tell when there is a no-flow condition.  This is a problem as the drive needs to shut off during these conditions or the pump will begin heating the water due to pump churn which is also wasteful from an energy perspective.  The simple fix for this problem is a small diaphragm-type, hydro-pneumatic tank which acts like a water balloon.

We all remember having water-balloon fights as kids, particularly in the hot summer months.  How does a water balloon have anything to do with badly tuned PID?  As previously mentioned, these older PID algorithms simply don’t know when the pump is churning as the pressure control gets more and more accurate.  Remember that PID works on differential and if that differential is very tight, it can “fool” the PID into thinking that the pump is still under a demand when it is actually just churning water in the casing.  That’s where the tank comes in.  Since the PID cannot tell that there is flow anymore, the booster senses that the system pressure is met and (after a timed delay) it begins “testing” for no flow by raising the speed of the pump slightly, creating a higher pressure in the discharge of the booster.  Think of this higher pressure as entering the hydro-pneumatic tank in the same way that you fill a water balloon from the water spigot.  When you clamp your fingers over the top of the balloon, the water will not flow, but as you release your finger just prior to tying it closed and plopping it over someone’s head, the water leaks out due to the elasticity of the rubber compressing the water out of the balloon.   By speeding the pump up momentarily, some of the water that is typically not moving in the casing now has an “escape” to the small tank.  Its diaphragm acts like the water balloon, trying to push the water back out, but if there is no more flow in the system, the water has nowhere to go, so the net effect is that the pressure in the header rises slightly due to the pressure imparted by the tank with an equal and opposing force as when it entered.  (Boyles Law at work once again)  If the pressure stays high, the tank proves that there is no flow, if the water escapes (like releasing your fingers from the water balloon) the system pressure does not rise and resets beginning the timeout again, since flow still exists.


Now that we understand that hydro-pneumatic tanks are ineffective on variable speed systems, except for those systems that have ineffective PID, let’s look at the solution which QuantumFlo provides.  NO QuantumFlo booster system requires a tank either for storage of water at no flow conditions (which cannot happen on VFD systems due to the lack of differential pressure) or for the lack of PID technology since iQFlo’s award-winning algorithm can sense very low flows that most flow switch or paddle-wheel flow sensors cannot.  We guarantee that the hydro-pneumatic tank is not required for our systems to work properly and we have over 1,100 systems in the field running without the need of these tanks to prove our point.  The key to high energy savings is to design systems that utilize state-of-the-art technologies to react immediately to the demands and drops in system flow.  This is the essence of a great pressure booster system; it only runs when it is NEEDED!  Unfortunately, for the tank in these applications, the current tide is working against their viability and pressing their extinction from the plumbing, water-storage venue.


ASHRAE 90.1 is an energy standard for mid to high-rise structures sponsored by ASHRAE (American Society of Heating Refrigeration and Air Conditioning Engineers), ANSI (American National Standards Institute) and IES (Illuminating Engineering Society) which specifies those energy conservation technologies and applications which must be implemented by October 2013 for the entire country.  A small but otherwise ignored section of Section 10.4.2 requires that all booster systems must NOT create or cause a change in pressure anywhere throughout the building, but rather these potential pressure changes must be recovered in the form of speed reduction.  Since the standards will no longer allow pressure changes to occur, the use of hydro-pneumatic tanks for plumbing-side applications is coming to an end.  Without differential pressure, these tanks do not store any water, so the only application that these tanks will be useful for would be for those systems with inefficient PID which use the “water balloon” method of sensing no flow.  Consultants need to be aware of the sales techniques used to justify the use of these unnecessary devices in the plumbing system, and knowledge is the key.  Hopefully, by understanding the nuances of these tanks and their applications, the consultant can make a more informed decision as to the necessity of these devices and provide the client with the best possible system without the waste associated with components required simply to “make the product work”.  QuantumFlo believes that this information is paramount as the industry moves forward toward 21st Century Energy-Engineering and this newsletter will assist in this education.