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Pretreatment Solutions Blog

For over 9 years, Nalco Pretreatment Solutions has been presenting a unique perspective on the water industry, systems and technologies, from very technical applications information, to general business topics. Our overarching themes include Safety, Saving Energy, Saving Time, Saving Water, and how our Services, Systems and Replacement Parts achieve these goals. On a routine basis, we add information on our services, systems and replacement parts and show how they are important to your company.

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Condensate Polisher Ready for Shipment to Chemical Plant in Louisiana >

Res-Kem will be shipping a condensate polisher to a chemical plant in Louisiana in a two days.  This system will be used to treat condensate to save water treatment chemical costs, identify process equipment leaks and will likely improve product quality of the chemicals they produce. What is the problem? The chemical plant uses steam


Water Softener Shipped to Food Flavorings Company in New Jersey >

Res-Kem recently shipped an industrial water softener to a food flavorings plant in southern New Jersey.  The water treated by the water softener is used to make steam to sterilize the raw plant material prior to extraction and extract the flavoring.   The softener will be a replacement to an existing tank which has failed after 40 years


I Can’t Believe It’s Not A Water Sample! >

Holy Moses! It wasn’t 1 week after my last blog on October 28th 2011 about receiving water sample in old pickle jars when I get a water sample in an used margarine container!   Water Sample Container Received by Res-Kem P-L-E-A-S-E!. My disclaimer: “results not guaranteed for accuracy due to improper sampling container” Ok, the


Validatable Water System for New Jersey Pharmaceutical Company Shipped >

We were recently asked to provide a DI water system for a central NJ Pharmaceutical company. They required a small amount of water for a batching operation, 50 – 60 gallons per batch 3 to 5 batches per day. Their requirements were that the water would have to meet USP specifications and that the system


Reduce Your Backwash Flow or Lament “Why is my ion exchange resin in the drain?” >

It is that time of year.  You must reduce your backwash flow in the Fall or you will find your ion exchange resin in the drain or waste treatment plant. Why do I need to reduce my backwash flow rate? If the backwash rate for an ion exchange system is set when the water is warm, the flow


3D CAD Drawings for Condensate Polishers for University in Massachusetts >

In order to speed installation of the condensate polishers we recently shipped to Massachusetts, Res-Kem was asked to provide 3D CAD files for the condensate polishers.  Here are some screenshots of these drawings. Why use 3D CAD? Given the complexity of the installation, tight dimensions and tight timeline, the 3D drawing helps the mechanical contractors understand


Water Sampling a Critical Step in Residential Water Equipment Selection >

For our wholesale equipment customers who treat well water, we offer a very basic water analysis. Ultimately, the success of the water treatment starts with proper sampling methods. We aren’t talking rocket surgery here. Most residential water treatment systems can be prescribed by testing for 3-5 parameters, including hardness, pH, iron and Total Dissolved solids (TDS).


Condensate Polishing System Shipped to University in Massachusetts >

A triple all stainless steel condensate polisher was shipped to a university in Cambridge, Massachusetts.  The system is designed to treat 445 gpm of condensate and is replacing an existing unit which had reached the end of its life.  This is part of a major upgrade of the steam plant including the condensate polishers, a triple


Ultra Filtration – The Membrane Problem Solver >

There are very few innovations in the water treatment market these days. Sure the electronic controls have gotten more intuitive and compact, that is about it. Ion exchange hasn’t really made quantum leaps into this either. So before I depress my fellow colleagues and influence young people to seek another career path, there is one exciting


Composite Fiberglass Softeners Versus Lined Carbon Steel Softeners >

Here are a few pro’s and con’s for a lined carbon steel softener option and a composite fiberglass softener system. Advantages of carbon steel lined softener system: Lined carbon steel system has top man ways and side wall handholes. Having these access points to get to the resin bed and underdrain hub and lateral can


Condensate Polisher Shipped to Arkansas >

We shipped another condensate polishing system last month. This dual tank unit was shipped to a government facility in Arkansas.    Here are the key features of the polisher: The system has two, 36″ stainless steel, ASME-code tanks mounted on a skid to treat steam condensate. The condensate polisher incorporates Bray 31 series butterfly valves with 93


Common Anion Resin Foulants >

In a previous blog, we discussed common cation resin foulants. Here are some typical issues that we see with anion resin. Organics: Surface waters, such as rivers, streams, reservoirs, lakes, etc, can contain hundreds of PPM of natural and man-made organic matter. Natural organics are commonly formed from decaying vegetation. This decaying vegetation includes tannins,


Ion Exchange Resin Testing & Analysis Services >

Test your ion exchange resin to monitor and maintain your water treatment systems such as softeners, dealkalizers, condensate polishers, deionizers or demineralizer systems. You should have the resin analyzed on a yearly basis to check the quality and performance of the resin. Samples can be taken from the resin bed and sent to Res-Kem to


Fleck Valved Multiple Tanks -“What’s Your System Number?” >

The Problem: Many water treatment end users can wind up inheriting an orphaned treatment system. Usually it was part of a package supplied by a car wash or a boiler treatment company. The situation becomes more confusing when there are multiple tanks with elaborate wiring and piping that resembles knotted intestines. Also, the owners manual


Trailer & Skid Mounted Mobile Water Treatment Systems Available >

Res-Kem, in association with our parent company, Nalco, now offers many different mobile water treatment system options. Whether you need supplemental water for short-term shortages, temporary water while waiting for a new system to be delivered, or improved water quality due to a change in feedwater, we can provide the mobile options to meet your


Common Cation Ion Exchange Resin Foulants >

We are often asked to help with an ion exchange system that no longer has the same run length as when it was new. Typically, this is the result of either reversible or non-reversible fouling of the cation and/or anion ion exchange resin. These are some of the common foulants: Iron: Clear Water Iron (ferrous


300 gpm Industrial Water Softener Shipped to a Virginia University >

I nearly missed taking photos of a very nice looking quadruple tank industrial water softener that recently left our plant. As you can see, the system is being prepared for shipment and only two of the four tanks were available in this photo. System Details: The system has four 30″ water softener vessels commonly called


Peroxide. Mother Natures Hamburger Helper >

As water treatment professionals we sometimes stumble upon jobs that are very troublesome. Those jobs almost always involve iron removal from ground water with oxidation. Oxidation is a tricky science. Your pH must be near neutral, but never above 8.2. High pH will cause the iron to create sludge. If you are using conventional air


AquaMatic Valves-Normally Open or Normally Closed…That is the Question >

One of the most confusing concepts of Aquamatic Valves is trying to determine from the customer if the valve is normally open or normally closed. What seems to confuse most customers when asked this question is how the valve functions on their system. For example, Res-Kem Water Softeners, for the most part, use a Normally


Activated Carbon-“That Old Black Magic” >

Activated carbon is an amazing product. Its ability to purify and remove contaminants seems limitless. However, few people know what activated carbon really is or how it’s manufactured. One of my goto articles on the subject, written by Calgon Carbon, is “Activated Carbon. What is it, How Does it Work“. What is activated carbon made


Pentair NXT Electronics to the Rescue to a Field Customization Catastrophe >

Question: Recently, a customer called Res-Kem looking for assistance with troublesome Fleck 2900 valves at a car wash. The system was a hodge podge of “borrowed” components. There was a Fleck 2900 analog valve system 9, Autotrol 2″ turbine meters, and a Autotrol 480 electronic controller. This set up was like someone putting a Ford


Replacing Pentair Fleck Drive Motors or “HOW TO GET YOUR SPARK ON” >

A field service person recently found that 24 volts and 120 volts don’t mix. The hard way. Field service people should take great care to realize this when servicing/replacing Pentair Fleck valve drive motors commonly found on models 2750,2850,2900,3150, 3900. Here is the golden rule: If the timer controls are Electronic (NT, NXT, XTR, SXT)


GlobalSpec Condensate Polisher Presentation Archive >

GlobalSpec now has easier access to presentation archives from their Virtual tradeshows. Here is the presentation Kevin Preising gave at the “Industrial Processing” event in August of 2010 entitled “Reuse the energy – don’t lose it!” Why should I view the presentation?With fuel comprising 60-70% of the operating costs of a typical steam plant, dumping


Condensate Polisher Shipped to a Virginia University >

This past month, we have built and sent another condensate polisher to a major university in Virginia. This stainless steel system with carbon steel piping is designed to treat 175 gpm and designed to operate at 100 psig and 200 F. The system has dual ASME-code 36 inch diameter tanks. The piping is Schedule 80


Corroding Condensate Polishers >

I have written several posts about Res-Kem’s reasons for manufacturing our condensate polishers in stainless steel. Here are two lessons why this is important. What happened? Within the past two weeks, we have been contacted by two different facilities managers who purchased sodium cycle condensate polishers from companies other than Res-Kem. The tanks on their


200gpm Condensate Polisher for Major Chemical Company >

Res-Kem will be shipping a 200 gpm condensate polisher for a large chemical company later this week. Using our standard all stainless steel condensate polisher design, the system was customized to meet the customer’s specific requirements. The tanks are ASME code tanks with a design pressure of 125 psig. All piping is welded stainless steel



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About Pretreatment Solutions
Nalco Pretreatment Solutions (PTS) is a leading manufacturer and supplier of services, systems and supplies for industrial and commercial water pretreatment systems for treating process water, product water, boiler pretreatment, and drinking water.
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