Americas Finest Window Cleaning Professionals
Pure Water from a Pro -
Reprinted with permission by Dwight Rowe.
Some time back I asked my local Culligan guy Rusty Stoner of Stoner Enterprises, Inc. out of Hagerstown, Maryland if he would be willing to answer some questions regarding pure water, DI tanks, reverse osmosis, membranes, resin and just about anything relating to pure water and he graciously agreed.
Here's the questions asked so far and remember, there are no stupid questions:
(Questions in blue, Rusty's answers are in normal print)
Yes, in theory "pure water" is tasteless, colorless and odorless. However, DI water actually has somewhat of a "fishy" smell. Without getting too technical, I'll just say this is a result of the chemicals used to regenerate the resins. All minerals or salts can leave spots on windows. They may not "harm" windows but they will, in most cases, leave spots at low levels.
Yes, a two tank set will definitely have more gallons capacity than a single tank
of the same size. There is simply double the amount of resin. Therefore, a two tank
set will get at least double the capacity of a single tank. Again, without getting
too technical, I will also say a two tank set up may get as much as 3.7 times the
capacity of a single tank depending on the type of resin used. ex. A 9"X44 set of
weak base de-
In the window washing scenario, chlorine in the raw water doesn't necessarily have
an adverse effect on the windows. However, chlorine will over time negatively impact
resin causing it to break down and lose capacity. Anytime chlorinated water is fed
into a de-
High TDS will simply exhaust the DI tanks faster. ex. a 9" X 44" weak base set of
As I said previously, chlorine will degrade the de-
Yes, anion resin may be subject to organic fouling whether there is a cation tank in front of it or not. This is not typically a concern in the window washing scenario. It would be more of a concern in higher purity or more critical applications such as micro electronics or medical applications.
Hot water is not good for deionizer resins. Most resins can only handle up to 120 degrees F before they start breaking down. There are some more expensive resins available that allow up to 160 degrees F.
I believe I already sent you some information about the Fundamentals of Deionization
by Ion Exchange. I will do my best to give it to you in a nut shell. -
Reprinted with permission by:
Jencor Services, LLC
Severn, MD. 21144