Today’s inquiry came to us from ‘Ric C’ who asked a very wise question about a water filtration unit he may wish to purchase (HomePure AP-0930):

Hi
Am dealing with a product that has an NSF certification, and below is the address;

http://www.nsf.com/Certified/DWTU/Listings.asp?TradeName=homepure&Standard=&ProductType=&PlantState=&PlantCountry=&PlantRegion=&submit3=SEARCH&hdModlStd=ModlStd

Does this mean the product is good?

Quite honestly, we have never seen the HomePure AP-0930 before but as we said previously, the marketplace has a ton of water filtration units out there and we seriously doubt that anyone could know the in’s and out’s of every single water filtration unit currently available for purchase.

With that said, we looked at the NSF credentials supplied by Ric and saw that this unit has tested and certified to NSF/ANSI STANDARD 042 (Drinking Water Treatment Units – Aesthetic Effects) for the reduction of chlorine taste and odor as well as NSF/ANSI STANDARD 053 (Drinking Water Treatment Units – Health Effects) for the reduction of volatile organic compounds (VOC’s).

While having NSF Certification does give the HomePure AP-0930 a bit of credibility, please keep in mind that not every water filter will work in every application — even with NSF, WQA, etc. certifications to back up its capabilities.

Think of it this way: A high quality hammer won’t do you a bit of good when you need to turn a screw.

Testing your water first?

Yes! Do it! Test your drinking water before spending money on a water filter!

Before investing in a water filter for your home or office make sure you test your water for as wide a range of potential contaminants as possible. Doing so could save you the expense and aggravation associated with installing a filter that addresses the wrong water quality issues.

Anything specific about the HomePure AP-0930 catch your eye?

We like the fact that the HomePure AP-0930 has NSF certifications. As we said before, it means the unit certainly has some credibility.

One thing we did not like about the unit dealt w/ it inability to filter out heavy metals such as lead, copper, iron, chromium, etc. In our opinion a well-rounded, general purpose water filter would also have the ability to remove/reduce levels of heavy metals in drinking water.

Older homes most likely contain metal piping and the majority of public water systems contain metal pipes, as well. “But, we live a newly constructed home.” Does not matter (in our opinion). Newer homes, while mostly containing PVC or some other type of plastic piping, still get connected to public water systems that contain miles and miles of metal pipes.

Depending upon the quality of the water when it leaves the water treatment plant, it has the opportunity to pick up anywhere from traces of metals to noticeable levels of metals as it travels through those miles of metal pipes to homes and offices on the water system.

Interesting fact: The literature for the HomePure AP-0930 water filter system did mention metals and say that metals in water may cause problems, but the HomePure AP-0930 does not remove/reduce metals.

Replacement filters for the HomePure AP-0930?

According to the NSF web site, the HomePure AP-0930 uses a replacement filter element with model number “AP-0931″. A quick search of three popular online water filter web sites (FilterWater.Com, FiltersFast.Com and WaterFilters.Net) and a google search yielded no locations where a person could purchase replacement filters.

Not a particularly good sign! What happens in 3 months or a year when the original filter kicks the bucket?

Moral of the story?

Not all water filter systems are created equal and even though some bear seals of certification and/or endorsement from well-known, reputable organizations such as NSF or WQA, not every one of those ‘certified’ products will clean up every possible water quality condition.

So, test your water to see what problems/issues it may have and THEN set about the task of locating the correct water quality improvement device for your water.

Look for products that bear the NSF and/or WQA logos, but do not assume the logo automatically means that a particular device will do what you need it to do.

Oh, and one last thing: Check to make sure you can easily acquire replacement filters for any water filter you consider buying.

That’s where a test like the Toxic Element Exposure Hair Testing Kit comes in handy. It gives people the ability to test their own body’s (or a loved one’s body) for recent exposure to 31 harmful and potentially harmful heavy metals — all with just a simple snip of hair from the head.

So if you suspect exposure to metals through drinking water contamination, airborne contaminants or any other means, you should definitely consider having yourself tested for Arsenic, Lead, Mercury, Cadmium, Chromium, Beryllium, Cobalt, Nickel, Zinc, Copper, Thorium, Thallium, Barium, Cesium, Manganese, Selenium, Bismuth, Vanadium, Silver, Antimony, Palladium, Aluminum, Platinum, Tungsten, Tin, Uranium, old, Tellurium, Germanium, Titanium, and Gadolinium.

The Toxic Element Exposure Hair Testing Kit provides results in just 7 to 10 days and best of all REQUIRES NO INVASIVE PROCEDURES (like needles).

• Chromium will appear in nature in one of three forms: Chromium(0), Chromium(III) or Chromium(VI).

• Chromium(0) gets used in the production of steel.

• Chromium(III) and/or Chromium(VI) may appear in compounds used for chrome plating, making dyes and pigments, tanning leather, and preserving wood.

• Chromium(III) aids the human body in its use of sugar, protein and fat, though health officials suggest not using excessive amounts of dietary supplements containing chromium compounds.

• Higher levels of chromium(VI) may cause irritation to the lining of the nose, ulcers in the nose, runny nose, and other breathing problems such as asthma, coughing, shortness of breath, and/or wheezing. While both Chromium(III) and Chromium(VI) in air can cause the aforementioned problems, effects occur at much lower concentrations of Chromium(VI) than Chromium(III).

• Chromium(III) and Chromium(VI) may exist in drinking water and have no associated tastes or odors.

• If ingested, Chromium(III) compounds tend to have less toxic tendencies and appear to cause fewer health problems than Chromium(VI) which causes anemia, irritation of the stomach, ulcers in the stomach, and ulcers in the small intestine.

• Some laboratory animals exposed to Chromium(VI) experienced sperm damage and damage to the male reproductive system.

• Some Chromium(VI) compounds may cause skin ulcers and a percentage of the population have extreme sensitivity to Chromium(VI) and/or Chromium(III) with allergic reactions manifesting themselves as severe redness and swelling of the skin.

• The Department of Health and Human Services (DHHS), the International Agency for Research on Cancer (IARC), and the EPA have determined that Chromium(VI) compounds are known human carcinogens. ( source )

• Some developmental effects have been observed in animals exposed to Chromium(VI). ( source )

Regulations, rules and recommendations pertaining to Chromium?

The EPA has determined that exposure to chromium in drinking water at concentrations of 1 mg/L for up to 10 days is not expected to cause any adverse effects in a child. The FDA has determined that the chromium concentration in bottled drinking water should not exceed 1 mg/L. The Occupational Health and Safety Administration (OSHA) has limited workers’ exposure to an average of 0.0005 mg/m3 chromium(VI), 0.5 mg/m3 chromium(III), and 1.0 mg/m3 chromium(0) for an 8-hour workday, 40-hour workweek. ( source )

What NSF/ANSI Standards apply to chromium in drinking water?

Standard 53, Standard 58, and Standard 62.

For more information on the specifics of those NSF/ANSI Standards and others, take a look at the NSF International Web Site. It offers a wealth of information for both the consumer AND water professionals alike.

Removing chromium from drinking water?

As far as units for the average consumer, pretty much only reverse osmosis makes any sense. One could use a process like distillation, but it has a flow rate that most likely would not meet homeowner needs and a much higher entry cost.

As an example of a reverse osmosis that carries NSF Certification for chromium reduction, you may want to take a look at the Pentek RO-3500 which has a price tag of under $270 and appears to offer a lot of filtering power for the money.

Pentek RO-3500 Reverse Osmosis Water Filters have tested and certified to NSF/ANSI Standard 58 for the reduction of Pentavalent Arsenic (Arsenic V), Barium, Cadmium, Copper, Hexavalent & Trivalent Chromium (Chromium VI & Chromium III), Cyst, Fluoride, Lead, Nitrate/Nitrite, Radium 226/228, Selenium, TDS and Turbidity.

“My husband and kids have no manners. We live in a place where temperatures hit the high 90′s for a good part of the year and since our tap water pretty much stinks (literally! yuck! so much chlorine!) we bought a Riviera filter by Brita and so far it has worked out GREAT — except that my family can’t seem to figure out how to refill the friggin’ thing so that when I get home I can have a glass of water, too! Do they make a larger pitcher or do I need to go out and get another Riviera and write my name on it?”

Ha ha. We have all grabbed a carton of milk or orange juice out of the fridge only to find that it had no weight and no contents. Now a similar heartbreaking event happens with filtered drinking water? What’s this So annoying! Well, lucky for you some folks at Brita must also have lazy family members because Brita does actually make a larger version of its very popular Riviera model.

The Riviera holds approximately 64 ounces of filtered drinking water at most which makes it kind of heavy when full so rather make a larger pitcher, Brita decided to make an in-fridge water dispenser called the Brita UltraMax Dispenser capable of holding an additional ten full 8-ounce glasses of cold, refreshing filtered drinking water more than its cousin the Riviera.

Brita Riviera Pitcher Water Filter

Brita UltraMax Water Dispenser

What do these Brita filters remove/reduce?

Both the Riviera Pitcher Filter and UltraMax Dispenser use the OB03 Water Filter, a filter certified by the NSF and the Water Quality Association to reduce levels of copper, mercury, cadmium, chlorine, and zinc in drinking water.

What NSF Standards does the Brita OB03 water filter certify to?

A very good question! While cruising around the web we found a number of sites claiming that the Brita OB03 water filter does a number of things… that we could NOT verify on the NSF, WQA or Brita web sites.

Therefore, we proudly present certification information about the Brita OB03 water filter that we COULD verify:

1) The Brita OB03 water filter has certified to NSF/ANSI Standard Number 53 (Health Effects) for the reduction of Copper, Mercury and Cadmium.

2) The Brita OB03 water filter has certified to NSF/ANSI Standard Number 42 which deals with the reduction of specific aesthetic or non-health-related contaminants (chlorine, taste and odor, and particulates) that may exist in drinking water for the following: Aesthetic chlorine, taste & odor, and zinc.

3) None of the three web sites mentioned earlier say anything about the OB03 having certifications for it’s ability to remove lead or volatile organic compounds (VOC’s).

Oh, and did we also mention you have the option of easily adding subtle, tasty flavors to the purified water it produces?

What importance does NSF Certified have?

Getting back to what really matters when it comes to a water filtration system, the PUR Pitcher Water Filter with PUR Flavor Options has passed independent laboratory testing and certified to NSF Standards for its ability to reduce levels of the following nasty water contaminants (if present to begin with):

• 2,4-D Reduction
• Atrazine Reduction — test for atrazine
• Benzene Reduction
• Cadmium Reduction
• Carbofuran Reduction
• Carbon Tetrachloride Reduction
• Copper Reduction — test for
• Cyst Reduction
• Mercury Reduction — test for mercury
• Simazine Reduction — test for simazine
• Tetrachloroethylene Reduction
• Toluene Reduction
• Trihalomethanes (TTHM) Reduction
• Chlorine Reduction – Aesthetic — test for total chlorine / test for free chlorine
• Nominal Particulate Reduction, Class I
• Taste and Odor Reduction
• Zinc Reduction — test for zinc

The PUR Water Filter in this water filter pitcher was successfully tested and certified by NSF International against NSF / ANSI Standards 42 and 53.

No, this filter will not protect your family against EVERY possible drinking water contaminant, but it does offer a decent amount of protection against some truly unpleasant compounds that don’t belong in your water.

Know what contaminants your drinking water contains

The best thing to do before ordering a water filter of ANY size, brand or type… Get your water tested to find out what you need to remove! If you have serious reason to suspect your water contains contaminants, consult with a certified water testing laboratory with proper accreditation. A lab like that will have the equipment and expertise to accurately assess any risks posed by contaminants in your water.

As an example, National Testing Laboratories, a water testing lab certified to perform water testing in pretty much every State in the US, offers three different water testing packages as well as a host of other contaminant-specific tests to the general public.

Click here to view National Testing Laboratories residential water testing packages.

National Testing Labs 27 Parameter Test Kit

National Testing Labs 83 Parameter Test Kit

National Testing Labs 97 Parameter Test Kit

]]> http://test-for.com/blog/2010/12/question-nsf-certified-water-pitcher-filter/feed/ 0 http://test-for.com/blog/2010/11/free-lead-in-water-testing-in-new-york-city/ http://test-for.com/blog/2010/11/free-lead-in-water-testing-in-new-york-city/#comments Tue, 30 Nov 2010 21:00:59 +0000 Water Testing Blog http://watertestingblog.com/?p=3179 Earlier today we posted an article about free lead in water testing in NYC and since then our comment form has blown up with questions about the program. Below you will find information about the program, its goals, etc. If you want the full story, though, as in the official version as written by officials in New York City, go here now

Lead in Drinking Water from Household Plumbing

Water brought into the City from its reservoir system located upstate has virtually zero lead in it when it reaches the City. The water, however, has the ability to absorb lead from (older lead-containing) solder, certain types of metal fixtures and plumbing found in older buildings.

Therefore, if you live in an older building and/or just want to know more about the possibility that your water may contain dangerous, or at the very least no-so-safe levels of lead, then the following links on New York City’s own web site may prove quite useful:

• Important Information About Lead in Your Drinking Water
• Lead in Household Plumbing Brochure (downloadable PDF)
• Get the Run Your Tap Poster (downloadable PDF)

While we certainly DO applaud NYC’s efforts to inform the general public about the potential dangers posed by lead in its drinking water, and also for proving free lead in water testing to NYC residents who request it, we think the idea of advising millions of people to ‘run the faucet for 30 seconds’ will waste a whole lot of water.

On the other hand, the only other option, forcing building owners to convert over their old, lead-laden plumbing over to newer, safer plumbing components, would cost millions upon millions of dollars. Oh, and good luck trying to enforce THAT mandate in a city that size!

Hmmm… Quite a dilemma: Wasting millions (billions?) of gallons of perfectly good water (before it got to the City) which we will run out of one day to avoid spending 10′s of millions (billions?) of dollars to replace lead-containing components of an aging infrastructure… or biting the bullet and spending the money.

We dare not comment on that last one any more than we already have! We do not have the answers, but that does not mean we don’t think people need to ponder such dilemmas — as we often do.

So where does the leave New Yorkers?

For right now it leaves them with the heads-up that they need to monitor the quality of their tap water AND, at least for now, a free lead in water testing service they can use to assess the amount of lead in their drinking water.

It ALSO puts them in the same category as the rest of us: Responsible for the Quality of the Water We Use.

For a long time many people believed that only private well owners had sole responsibility for monitoring the quality of the water entering their homes… but obviously we can all now see that the miles of piping that may or may not contain lead — or leaks where unwanted contaminants could get in — presents itself as a noteworthy risk to folks with city/municipal water.

Therefore, we feel that everyone ought to consider testing their tap water from time to time. Unexpected leaks can occur at any time and may go undetected for years as they allow innumerable contaminants to enter the water supply, deplete disinfectant levels, and possibly find a nice place to hang out, grow and create new little contaminants of their own in the water supply.

Wow. The imagery from that last statement made us shudder. We hope it had the same effect on all of you.

In both cases, and so many more, we would suggest getting a test kit such as the Water Quality Test Kit made by SenSafe or the All in One Water Test Kit made by WaterSafe… and doing some preliminary testing of their own.

In most cases people complaining about city water will have problems caused by contaminants such as dissolved metals (i.e. lead, iron, copper, etc.), chlorine content (free and/or total), total hardness (calcium and/or manganese), and/or rotten egg smells caused by dissolved hydrogen sulfide.

If you get unusual or questionable results, definitely seek the services of a certified water testing laboratory; preferably one not affiliated with a water filter system distributor.

What about bacteria?

We also get asked quite often about the likelihood of harmful bacteria showing up in tap water. Despite the efficiency of modern water treatment facilities and the exemplary track records most have when it comes to the quality of the water they produce, one must always remember two things:

1) Accidental machinery malfunctions can occur.

2) City water travels through lots and lots of piping before it gets to your tap… meaning it passes over thousands of joints where leaks in the pipes could allow the introduction of dangerous bacteria.

If you suspect for any reason that your water supply may contain bacteria, although home drinking water test kits work well as screening methods, times like this call for the services of a certified water testing lab.

You local health department can suggest a water testing laboratory in your area or you can use a mail order laboratory such as National Testing Labs.

I’m thinking of getting a water filter pitcher. Must it be kept in the refrigerator in order for the filter to work? I prefer room temp. water.

Thanks, Martha

We knew that hot water posed a problem for certain types of filters and filter housings — hence the need for special hot water filters & housings — and we knew that frozen water would not work all that well, either (obviously!), but as for whether or not a filter would perform all that much differently at room temperature versus the temperature of a refrigerator, we never gave that a whole lot of thought.

Until now.

Our quick research has determined that water filter pitchers ought to work just as well at room temperature as they would in a refrigerator. We do, however, suspect that one could possibly need to replace the filters more frequently since warmer temperatures in the filter would make an excellent breeding ground for bacteria. We suspect that water pitcher filters that use certain blends of KDF Media may prove more resistant to bacterial growth than filters that do not use KDF Media.

The Crystal Quest Pitcher Water Filter does something that similar products made by other leading water pitcher filter manufacturers do not. It uses a total of FIVE stages of filtration.

• A one micron sediment pre-filter takes out dirt, rust, sediment and any other large particles.

• In filter stages 2 & 3… Blends of KDF55 and KDF85 resin media reduce dissolved metals (i.e. iron, mercury, copper, nickel, chromium) and harmful bacteria. As we mentioned before, KDF resin media also has properties which help to prevent the growth of bacteria in the filter.

• In the fourth stage of filtration a bed of ion exchange resin further reduces heavy metals including lead, copper and aluminum. This stage also reduces water hardness (calcium and magnesium).

• The fifth stage of filtration contains granulated activated carbon (GAC) reduces chlorine (99.9%), bad taste and odors. It also reduces pesticides and chemicals that science has linked to increased cancer risks in humans (i.e. VOC’s, benzene, TTHMs and toxaphene).

We have posted a number of articles about nitrates in drinking water and given a number of links to products that can remove nitrates from drinking water… and today we found out that FilterWater.Com has started carrying a highly effective nitrate removal system made by Crystal Quest that costs less than $150, features a dual filter system containing a total of 7 filtration stages, and qualifies for free shipping.

Do I have nitrates in my drinking water?

Nitrates occur naturally in the environment and may come from any number of sources in nature including, but not limited to, animal waste that filters down into the aquifer. Wells tapping into that aquifer as a source of drinking water then pull the water to the surface where it gets used by the well owner for cooking, drinking, bathing, etc.

• Testing for Nitrates in Drinking Water
  – includes a simple explanation of Blue Baby Syndrome

• Springtime Testing of Well Water in Farming Community?

• Simple Test for Nitrates and Nitrites in Water

• Nitrates in Well Water / Private Well Testing

What harm can nitrates in drinking water do?

The USEPA summed up the effects of nitrates in drinking in the following ways:

“Short-term: Excessive levels of nitrate in drinking water have caused serious illness and sometimes death. The serious illness in infants is due to the conversion of nitrate to nitrite by the body, which can interfere with the oxygen-carrying capacity of the child’s blood. This can be an acute condition in which health deteriorates rapidly over a period of days. Symptoms include shortness of breath and blueness of the skin.” ( source )

“Long-term: Nitrates and nitrites have the potential to cause the following effects from a lifetime exposure at levels above the MCL: diuresis, increased starchy deposits and hemorrhaging of the spleen.” ( source )

How can I get rid of nitrates in my water?

We started this posting by saying that Filter Water now carries a dual filter counter top nitrate removal system… so now we figure we ought to tell you a little more about it.

Stage 1 — This product uses as dedicated nitrate removal filter. Water first flows through a nitrate-selective resin cartridge designed to reduce nitrate levels in water by 90 to 95 percent. The cartridge has an expected nitrate capacity of approximately 5500 ppm and owners can regenerate (aka: recharge, flush out, clean) the cartridge using a sodium chloride brine solution when it gets full.

Stages 2 & 7 — Pre and post one-micron filter pads remove suspended particles such as silt, sediment, cyst (Giardia, Cryptosporidium), sand, rust, dirt, and other undissolved matter in the water.

Stages 3 & 4 — Specially formulated beds of copper and zinc (KDF-55D, and KDF-85D) use a process known as oxidation-reduction to exhaust any chlorine in the water and convert iron and hydrogen sulfide into insoluble matter which attaches to the surface of the media. Heavy metals such as lead, mercury, copper, nickel, chromium, cadmium, aluminum, etc. also get removed during stages 3 & 4.

Stage 5 — Ion exchange resins reduce heavy metals such as lead, copper and aluminum further and also reduce water hardness by filtering out magnesium and calcium.

Stage 6 — Granulated Activated Carbon (GAC), a universally recognized and widely used adsorbent for a wide variety of unwanted drinking water contaminants such as chlorine (99.9%), chemicals linked to cancer (i.e. THM’s, benzene) pesticides & herbicides such as atrazine and simazine, insecticides, volatile organic compounds (VOC’s), PCB’s, MTBE’s and hundreds of other chemical contaminants which could possibly exist in your water supply.

Other features of the Dual Filter Nitrate Removal System?

Many people simply do not want to mess around with plumbing under their sink so a unit like the Crystal Quest Dual Filter Nitrate Filter System which requires no plumbing will work out beautifully.

The unit sits quietly next to the sink on the counter top and connects easily to pretty much any standard kitchen faucet. It also comes with a diverter valve which allows people to switch between filtered and unfiltered water with the flip of a switch.

Not digging the stark white appearance of the filter? Don’t worry! You have the option of ordering the unit with a chrome finish if that better suits the decor of your kitchen.

How long will the filters last and what do replacements cost?

The manufacturer estimates that the filters ought to last between 1 and 3 years depending upon the initial quality of source water. Keep in mind, though, that a soaking of the nitrate-specific cartridge in sodium or potassium chloride solution at room temperature will recharge the cartridge for additional use.

1. Remove cartridge from unit
2. Immerse the cartridge in a sodium or potassium chloride and room temperature water for a period of 30 minutes
3. Rinse off and then soak the cartridge for 30 minutes in salt-free water
4. Shake excess water off of and out of the cartridge
5. Place the cartridge back in the filter housing
6. Run through the systems for a period of 5-10 minutes

When it comes time to replace the nitrate-specific filter cartridge it will cost around $50 and the 6-stage filter cartridge will cost about the same.

I need to find out about the testerORP/Redox for using at the pool

And finally, what did they have to say?

Could you explain what could be tested at the pool’s water by tested ORP/Redox (ORPTester 10 model)? How often do I have to conduct the tests?

Thank you,

Ella

Thank you, Ella, for bringing up the topic of ORP Meters and what they test. Many people have heard of ORP Meters, but not many understand a whole lot about them.

Rather than get into a discussion about gaining and losing electrons that would bore everyone to tears, we will instead sum up ORP Meters’ usefulness by saying that they measure the effectiveness of oxidizers (i.e. chlorine, bromine, non-chlorine shock, and hydrogen peroxide, etc.) in the water.

For you more technical types out there, in a chemical reaction an oxidizing agent will take electrons away from other compounds/elements in the mixture and a reducing agent will donate electrons to the other compounds/elements.

Many automatic chemical dispensing systems rely upon ORP testing units to determine how much and when to add chemical sanitizers to pools.

Frequency of testing?

Whether it has to do with chlorine testing or testing for pretty much ANY pool water parameter, if your pool falls in the category of ‘public’ you will want to consult with your local health department… as regulations vary by locale.

What testing is required for public pools?

This also varies by location so once again you will want to consult with your local health department.

Oh, and before we forget, some health departments may not recognize ORP testing as a definitive way of measuring sanitizer levels. Also, simply measuring the sanitizer level in a swimming pool will not tell you everything you need to know in order to make sure the water stays safe.

Pool water parameters typically tested?

Sanitizer (i.e. free & total chlorine) levels, pH, total alkalinity, calcium or total hardness, stabilizer (cyanuric acid) levels, TDS, and water metals (i.e. iron & copper).

As we said before, you will want to check with your local health department to see what parameters they want you to test and how often they want you to test them.

Taylor K2006 Test Kit

eXact Micro 7+ Pool Testing Meter

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