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Thread: Pool Water Quality Testing Research Project

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    Join Date
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    Pool Water Quality Testing Research Project

    Hi all! I am a graduate student at the University of Akron in Ohio, and I am working on a research project this summer for a non-profit economic development firm in my area. My project is to learn more about pool/spa water quality testing and monitoring. I was hoping you all could answer the following questions:

    1. 1. What testing method do you currently use? Why?
    2. 2. What are you testing for?
    3. 3. How frequently do you test?


    In addition, I am hoping to get feedback concerning a new water quality sensor that is being developed. The sensor consists of an electrode pair that measures pH, EC, and temperature. It is wireless and transmits its results either to an LCD display or a smart phone app. I know there are some similar products out there that have not been very successful, but I would really appreciate any feedback you can give on whether this product is something you would be interested in.
    1. 1. If you are interested, please let me know what appeals to you about this product and any additional thoughts you have concerning a product like this.
    2. 2. If you are not interested, please also let me know why and how the sensor could be modified to better fit your needs.



    Thank you so much for your feedback!

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    Smykowski's Avatar
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    Re: Pool Water Quality Testing Research Project

    You've certainly found the right place! The answer to questions 1-3 above are too long to post. I think you'll find most of what you need about our method in Pool School.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    freqz's Avatar
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    Re: Pool Water Quality Testing Research Project

    EC??
    25000 gal in ground plaster. '79 vintage. Cartridge filter.

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    Re: Pool Water Quality Testing Research Project

    Quote Originally Posted by freqz View Post
    EC??
    EC refers to electrical conductivity. Sorry for the confusion!

    - - - Updated - - -

    I will definitely take a look in Pool School. Thanks for the suggestion! Do you have any thoughts around the wireless sensor that is being developed? The feedback I have received so far is most pool owners who test the water themselves prefer to use traditional methods because they know those methods are reliable, but I would appreciate any additional feedback!

  5. Back To Top    #5

    Re: Pool Water Quality Testing Research Project

    I test for all the basic conditions; pH, Free Chlorine, Alkalinity, Hardness, and because work involves waste water management, I also test Turbidity and Conductivity and Dissolved Solids.
    17,500 gallon 16x32 doughboy Aboveground
    West Michigan

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    Mod Squad JVTrain's Avatar
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    Re: Pool Water Quality Testing Research Project

    Pool School will tell you everything you need to know about how I test, what I'm testing for and how often.

    The biggest problem/disadvantage with electronic based systems for chemical testing is the inherent need for calibration. This adds typically more deviation in accuracy and precision than desired and an additional cost and expertise to maintain proper function. Drop based testing for many of the tests relevant to pool chemistry and the levels required are simply more appropriately accurate and less expensive to carry out over the long term. Also, because there are many varied tests needed to maintain chemistry one sensor type is unlikely to cover all that's necessary. So... you add more sensors. Well, that's more calibration and more expertise to maintain. If cost and expertise are not a consideration, it sounds great. But if they are, as in the real world, it sounds terrible.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
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