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The main reasons people get sick from pool water: Too little sanitizer, improperly balanced water, poorly filtered pool water, and poorly circulated pool water.
While the CDC (Center for Disease Control) cannot do a whole lot about the latter reasons, it does want to help pool owners learn how to properly test for free chlorine residual in their pool water.
On this page on the CDC web site we found the following instructions for practicing free chlorine testing at home:
Testing the strips at home before visiting the pool can help you learn how to properly use and read them.
In order to test at home, you will need:
- 3 containers
- 13 cups of regular tap water
- 3 drops of liquid chlorine bleach *please note that if bleach is more than 3 months old, it may be too old to provide an accurate test
Allow tap to run for about 2 minutes
- Fill container 1 with 1 cup of water
- Fill containers 2 and 3 with 6 cups of water each
- Add 1 drop of liquid chlorine bleach to container 2
- Add 2 drops of liquid chlorine bleach to container 3
Test each container of water utilizing the strips and the manufacturer’s instructions and compare your results to the values below:
- 0 to 1 ppm free chlorine expected
- 2 to 3 ppm free chlorine expected
- 4 to 5 ppm free chlorine expected
Many people assume they know how to use their pool test strips because the instructions seem so simple and easy to follow but in reality a good number of pool owners perform pool water testing incorrectly. also, a good number of pool owners use out-of-date reagents and test strips. A definite no-no if you want to get accurate test results!
]]>If you have a well currently or plan on having a well installed at some point we highly suggest spending some time reading the content on their site.
My son has just been diagnosed with an immune deficiency, and I should be sterilizing his drinking water -which I am doing by boiling for him. I am wondering if distilled or reverse osmosis, bottled water would effectively remove bacteria from the water, and be a safe alternative. Would one be better then the other.
Thank you for your time,
Lisa
Thank you, Lisa, for your question and it pains us to learn of your son’s condition. We hope that modern medicine can find a way to help your son live a long and healthy life.
Regarding your question about the best way to sterilize water for people with compromised immune systems, the EPA and CDC co-released a document back in 1995 that gives a lot of useful information on the topic entitled Guidance for People with Severely Weakened Immune Systems.
Below you will find excerpts from that document relating directly to the questions you asked:
We suggest you take a look at the NSF Web Site to see what systems meet their requirements. In a situation like yours, you will want to make certain the product you purchase will accomplish all your objectives — and then some.
One system we came across recently, the Pentek RO-3500 Monitored Reverse Osmosis System,
NSF Tested & Certified Standard 58 for reduction of TDS, Fluoride, Turbidity, Lead, Nitrates, Selenium, Arsenic, Copper, Cadmium, Barium, Cyst, and Radium.
The Pentek R0-3500 features the 3 stage system, one ROM-230TN membrane, a D15 sediment filter, a D20 carbon filter, and one long-reach lead-free faucet. Unit comes with a standard installation kit and instructions.
Another feature of the the Pentek RO3500 which makes it quite nice… an electronic monitoring system that keeps track of the water filters cartridges’ lifespans and informs the owner when they need replacing.
What elements does the RO-3500 Reverse Osmosis System reduce and/or eliminate? The unit has the ability to filter out the following elements as well as many other chemical compounds:
For more information on the Pentek Reverse Osmosis System mentioned above, please read its detailed specifications on FiltersFast.Com.
One final word
Use of a reverse osmosis systems does NOT guarantee the elimination of ALL possible biological contaminants since some biological contaminants have sizes smaller than the membranes in RO units can filter out.
For that reason you may want to consider adding a UV Sterilizer to your filtration setup. These devices render biological contaminants incapable of reproducing by altering their genetic structure with specific wavelengths of light.
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