A lurking problem? 

Another potential area or source of the Chloramine problem may be something we as dealers or homeowners have no control over.  The following comments and questions are purely speculative and have not been scientifically proved.  The premises are based on over 30 years of experiential observation and hopefully common sense.  The Chloramine problems that we’ve been discussing in this article have become more prevalent each passing swimming season over the past decade.  There’s a greater frequency and severity of the Chloramine issue. 

In the early and mid 1990’s, the nation’s public water suppliers began switching to using chloramines in the water sanitizing process; known as "chloraminization".  Chloramines were and are known to be more stable and “persistent” as we’ve already mentioned.  Chloramines do a good job controlling normal bacteria and “stuff” in water. I will not discuss the reasons why chloramines are the preferred and even mandated form of bacteria control in potable water systems.  That is a discussion for the scientist and politician.  We are instead looking at daily observations.  

Throughout the 1990’s we heard the cry of “get of rid of chlorine!”  Chlorine was given a bad rap.  Mainly from people who don’t know what they’re talking about.  After all, how do you ban an element?  People didn’t like the so-called taste of chlorine in their drinking water. Given a choice of coli-form bacteria or a slight chlorine taste, I’ll take the chlorine taste. Chlorine has undoubtedly saved thousands, and I dare say millions, of lives around the world in purifying water.  We see what untreated water looks & smells like and its devastating effects.  This is especially poignant in the wake of Hurricanes Katrina and Rita. 

These are observations over the past 10 - 15 years regarding swimming pools:  Increasing frequency and severity in treating chloramines in swimming pool water; increased questions of chlorine demand or consumption; more frequent consumer complaints of skin rashes or eye irritation when using a pool, spa or hot tub. In the late 1980’s and early 1990’s, “pink slime” and “white water mold” were being blamed on biguanide usage, until it was noticed that there was this pink stuff coming from the garden hose.  

From a potable drinking water standpoint these are our observations.  Tap water rarely “smells” of chlorine. People notice the need to more frequently clean a bathroom or sink areas.  The toilet always seems to have a ring.  Often times when the garden hose is turned on, a “glob” of icky, pink stuff comes out.  What’s going on?   

Now we tell our pool or spa customers to run the water for a minute or two to flush out the garden hose before adding that water to the pool, spa or hot tub (now we’re “wasting water,” a very valuable resource).  We don’t want the “bio-film” in the pool or spa, but what about the chloramines coming in? Do we have a potential situation where pathogens, that may be present in the drinking water, are being killed but then their “waste” is not being oxidized (utilizing chlorine has some oxidizing attributes, chloramines do not)? Why is there a build-up of bio-films in garden hoses, sinks, toilets, piping?   

Are chloramines good oxidizers?  No. As pool & spa professionals, we know the necessity and advantage that regular oxidation performs; we more fully get rid of ALL of the stuff that is a potential contaminant.  This hypothesis is based on the fact that if you add more chloramines to pool or spa water, you will form even more.  It’s a vicious circle. Let’s use this analogy:  I have a pile of garbage by putting some kind of chemical on to kill the germ, I’ve treated it; but it’s still there.  Now if I then burn that pile of garbage (oxidizing it), I’ve reduced it to a more “harmless” ash, which by the way has a much smaller volume.  Does this make sense?  That’s why shock treatments are often referred to as oxidizers.  I suppose that’s why BioGuard® named their shock treatment Burn Out®.

The pool, spa or hot tub owner and user must understand these facts and act accordingly to protect not only his or her investment, but also the health of the users. 

Is there a correlation? In my opinion, possibly. Unfortunately, it will take many years of testing & “scientific” observation before we have a conclusive answer.  

In the meanwhile, the local public water suppliers tell us: “Chloramines will not affect swimming pools; you will still need a free-chlorine residual to retard algae and bacterial growths in pools.” (http://www.casitaswater.org/water%20utility/chloramines.htm  - this link & information has been removed by casitaswater.og - Ventura, CA) 

At the same time, in the same article, there is the statement that “[a] small amount of ammonia used to form Chloramines may affect rubber and some manufacturing processes. Chloramines may cause rubber linings of water lines to disintegrate over a period of time.”   Think of all the rubber o-rings, gaskets, “donuts”, etc. that are used in your home itself, never mind the swimming pool or spa.

Other comments published by other water authorities such as in Pasco County, Florida, provide similar information. (http://pascocountyfl.net/utilities/water/Chloramine.htm) 

Another issue is that chloramines attack copper.  In due time, those of us with older homes or homes with copper piping will succumb to this attack & experience leaking and ruining of our homes because of chloramines.

Is there a matter of public health?  I don’t know.  I have not investigated nor do I have the specific expertise to probe those more far-reaching consequences.  I believe our public officials are constantly doing what is in all of our best interests.  I believe this because they have families and loved-ones who are drinking this water also. 

The purpose of this article is to address some possible correlations that may directly affect my customers’ pools, spas & hot tubs and their families and friends who use them.  People in both the pool & spa industries and public health & water supply need to work together to address these issues.  Although the “use” of water for filling pools and spas is relatively small (practically speaking), our impact is great across the country.  Consumers are constantly looking for answers to simplify their pool and spa care needs and expense.  Consumers also want to be assured of their personal health and safety regarding swimming, soaking, drinking and overall water consumption.

For further information & treatment regarding Chloramines, visit our Spa Care Knowledge Base

Some of the information contained in this article is courtesy of the BioGuard Chem PLUS 2003, 2004 Reference Guide. 

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