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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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Discontinued DOW FILMTEC™ RO and Nanofiltration Products >
While working on adding Dow Filmtec membranes to the Nalco eCommerce site, I came across this interesting list of discontinued FILMTEC™  RO and NF products on...

Rebranded, Redesigned and Responsive Website >
Recently, we completed a redesign of our website and rebranded it as Nalco Pretreatment Solutions part of Nalco | An Ecolab Company.  This project was parti...

RO Membrane Cleaning-Offsite >
If you have an RO system, periodically you will need to clean your membranes. We can provide off-site membrane cleaning services that are designed to improve the ...

Teaching People What They Need >
My normal focus in this blog is water treatment.  I am going to take a tangent today because my favorite blogger, Seth Godin, had a very interesting post last w...

Selecting the Perfect Filter Cartridge >
Being a distributor of water treatment supplies, we are asked to provide filter cartridges. Most of the time, these requests will consist of: “Hey, I need a...

Finally Available! – Stainless Steel Resin Traps >
After many requests, Res-Kem now has stainless steel resin traps available!  So, in addition to our standard PVC and CPVC resin traps, we now offer them in 304SS...

1.4 MILES of Wire Saved Through Innovative PLC Architecture >
… and over 800 electrical and 40 instrument air connections! The field wiring for our customer became very complex because they wanted verification that eac...

10 Questions to Answer Before You Specify Water Treatment Equipment >
Many times per day, we are asked to provide a quote for a specific water treatment technology like RO, demineralization, water softening, filtration, etc.  At Re...

Condensate Polisher Shipped to New Jersey University >
Last week, Res-Kem shipped a condensate polisher to a New Jersey university.  This condensate polisher will be installed as part of a new onsite power production...

Condensate Polishing System Shipped to University in Rhode Island >
A condensate polisher was shipped last week to a university in Rhode island to treat their steam condensate to save energy, reduce water usage and reduce water tr...

Ultrapure Water System Starting Up at Nanotechnology Center in Philadelphia >
Res-Kem supplied, to a new nanotechnology center in Philadelphia, an ultrapure water system. The start up will commence this Monday. The system is designed to...

Second Condensate Polishing System Shipping to a North Carolina University >
Res-Kem is shipping the second of two condensate polishing systems to a leading private university in North Carolina next week.  This is the second of two sys...

Chloramine Removal With Catalytic Carbon >
Is your carbon under attack? Have you chosen the correct carbon for chloramine removal? What carbon makes the most effective final barrier against chloramines?  ...

DI System Shipping to Washington Chemical Plant >
Shipping today is a two bed (cation ion exchange tank followed by an anion ion exchange tank) demineralizer for a chemical plant in Washington State. This unit is...

Downloadable Catalog of Water Treatment Equipment Updated >
For 2012, we updated our downloadable industrial water treatment catalog.  (Given the number of equipment choices we provide, the catalog file is very large, so...

Q&A on Condensate Polishers with Res-Kem’s Kevin Preising >
While dirty condensate clean-up can be an energy buster in most processing plants, one cost effective solution is to polish contaminated condensate for re-use. Co...

New Two Bed Demineralizer Technical Bulletins >
Res-Kem has a complete 2-Bed demineralizer product line designed for industrial water production.  The standard tank sizes range from 18″ to 96″.  ...

Condensate Polishing & Maintaining Quality Boiler Water >
Maintaining proper boiler water quality can be both costly and complicated when faced with navigating ASME boiler water guidelines. One cost effective solution is...

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 treatm...

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...

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 ...

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...

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 pol...

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. Io...

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 demineraliz...

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 boil...

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 s...

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 reversib...

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 co...

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...

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 des...

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 importa...

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 de...

Condensate Polisher ROI Presentation >
Reuse It – Don’t Lose It! The Economics of Condensate Polishing was presented at the GlobalSpec Industrial Processing virtual tradeshow on August 25, 2010. It...

Presentation on Condensate Polisher ROI >
As I alerted in a previous post, Kevin Preising of Res-Kem gave a webcast entitled “Reuse It or Lose It – The Economics of Condensate Polishing”...

Economics of Condensate Polishing >
On August 25, 2010, Res-Kem’s Kevin Preising will make a presentation entitled “Reuse It – Don’t Lose It! The Economics of Condensate Polishing...

Softener Service at Power Plant in New Jersey >
After reviewing our blog posts over the past 4+ years, I realized we have not talked much about our site service team. Our normal service area is in New Jersey, E...

Triple Greensand Plus Filter for Iron and Manganese Removal >
A triple Greensand Plus filter for iron and manganese removal was assembled and shipped today. This skid-mounted system will be installed to treat the water for a...

Dealkalizer Performance Calculations >
We recently had questions about a perceived problem with a dealkalizer. This customer believed the capacity of the dealkalizer was lower than originally specified...

Pentair Fleck Electronic Timers >
Fleck has been moving quickly with upgrades to their electronic timers, which has created confusion over which is the latest one and which valves accept which tim...

Aquamatic Valve & Control Lines Discontinued >
In addition to the announcement of the A200 series impulse control stager being discontinued, the letter from Pentair has other Aquamatic discontinuations. The fo...

A200 Stager Control from Aquamatic Discontinued >
Soon after we completed changes to our website, discussed in our previous blog post, a discontinuation notice was Res-Kem just received in the mail from Aquamatic...

Aquamatic Stager Controls Information for GE/Osmonics >
Res-Kem has a significant amount of information on Aquamatic Stager Controls on this website. We wanted to make the information more easily accessible for our cus...

Triple Softener System for Steam Heat Peaking Plant Sized for 750 gpm Flow >
Here is another example of number of the industrial and/or commercial water treatment systems being designed, assembled, shipped and installed by Res-Kem engineer...

How to Measure pH Accurately in Steam Condensate >
Keeping within ASME guidelines for total iron in boiler feedwater below 0.1 ppm and total copper below 0.05 ppm copper requires attention to the maintenance of st...

Uniform Particle Size Ion Exchange Resins >
We received notice today that Purolite Ion Exchange Company will no longer be selling the anion resins, A-300 and A-400. These resins will be replaced by Purofine...

Setting Brine Tank Refill Time on Fleck Softener Valve >
The Pentair® Fleck® multi-port softener valve controllers, electronic versions SE, XT, XTR and SXT and non-electronic versions, are very flexible allowing for c...

Type II Anion vs Type I Anion: Ion Exchange Resin Analysis Yields Regeneration Savings >
Res-Kem is a supplier of ion exchange resins from several vendors including Purolite. Res-Kem is often asked to diagnose a potential ion exchange resin problem. D...

Activated Carbon: Mesh Size >
We are often questioned about the differences between 1240 (12 by 40) mesh activated carbon and 830 (8 by 30) mesh activated carbon. The 1240 mesh activated carbo...

FILMTECTM BW30LE-440 and BW30LE-4040 RO Elements to be Discontinued >
The Dow Chemical Company recently sent a discontinuation notice for the FILMTEC BW30LE-440 and BW30LE-4040 which have been an industry standard for many years. Do...

Condensate Polisher Vessel Materials of Construction >
We often receive the following question about the materials of construction of condensate polisher vessels. Question: We’re considering a condensate polishe...

Aquamatic Valve Selection and Pricing >
A common inquiry we receive at Res-Kem is a customer looking for a price and delivery on an Aquamatic Valve. We, in turn, ask the customer the following: What kin...

Water Testing Services Offered >
Before purchasing any water treatment equipment, the first piece of information a person should obtain is a water analysis. The challenge is you want a quick, ind...

Solo and Solomatic Valves from Aquamatic >
Over many years most water treatment equipment manufacturers utilized various types of multiport valves for their water conditioning equipment, including water so...

Condensate Polisher with All Stainless Steel Construction >
Last week, Res-Kem shipped a condensate polisher designed to treat an 80 gpm flow rate with a 390,000 grain capacity. The condensate polisher had an all stainless...

Ion Exchange Resin Equivalency Chart >
There are many different ion exchange resin manufacturers including Purolite, Dow, Sybron/Bayer, Thermax, Rohm and Haas and ResinTech. We are often asked to provi...

Boiler Feed Water Flow Rate Requirements Chart >
Question: We received a request for proposal today for “a water treatment system to treat the water going into my dual 194 HP steam boilers”. Start of...

Problems with a Bruner(R) Softener Multi-Port Valve >
Here are some common problems we see with very old Bruner(R), Bruner-matic(R), and Culligan(R) Hi-Flo (TM) multi-port valves. A recent request for help prompted t...

How Does a Softener Valve Nest Work? >
The “valvenest” for a water softener is made of a minimum of six valves. The easiest way to understand how the water and brine flows through the valve...

My backwash flow rate is too high for my well and well pump >
A common design issue for sand filters, multi-media filters, greensand filters, arsenic removal units, etc. is the large difference between the backwash flow rate...

What is an Empty Bed Contact Time (EBCT)? >
Question: We receive many questions on calculating the Empty Bed Contact Time as follows: “How do I calculate the “Empty Bed Contact Time” for s...


How Can We Help?
Looking to service, replace, expand, or improve your water pretreatment system? Need supplies or replacement parts for your pretreatment water equipment? Let Nalco PTS help you find what you're looking for or contact Nalco for further assistance with all of your water pretreatment system needs.
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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