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    biofilms - why 1-3ppm FC is not enough

    Greetings Hot Tub enthusiasts Those who are familiar with my work know that I have spent large amounts of time and water, testing various purge products. This post is not about that - it is instead dedicated to the little-known fact that biofilms can apparently survive and even grow in the...
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    Time for another purge product shootout

    HI all, those who have followed my posts will recognize that when it comes time to purge my spa I have a habit of testing two or more purge products and posting the results. This time I pitted Leisure Time "Jet Clean" and ProLine "Jet Line Cleaner" against the product familiar to this forum...
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    A purge product shootout

    Greetings everyone, I have posted this information to the pool and spa forum as well because there appears to be general interest in this topic. As some of you know, I tend to spend time and money on multiple drains to test for the most effective purge product and the below is my latest It...
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    purging after storage

    Greetings all, I have completed another purge experiment -- this time to determine if it is necessary to purge a Spa that has been in storage -- if you know that it was clean prior. The short answer is "yes" ,but if you would like to see the details of my work, I wrote up the story on my hobby...
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    Sanitizer decay rates

    I'd like to start a discussion about sanitizer decay rates. I'm getting 1.5pp. Per 24 hours. What are your numbers? Note that my spa has an ozone generator so my decay rate should be worse than normal . My observation is that measuring decay rate as a percentage isn't very useful because...
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    Ahh-some goes head to head with oh yuk

    Greetings and biofilm solutions to everyone . I have just completed a head to head shootout between ahh- some and a "new to me" purge product called "oh yuk". You may recall that I performed a series of experiments a few years back and found that ahh-some handily beat out a few other...
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    good article in Aqua Magazine - drain intervals

    Hi all, I'd like to make reference to an interesting article about drain intervals. I've posted this information in another forum as well, but I wasn't sure if it was acceptable to cross post so I'll repeat my text below: Those who have followed my posts know where I stand on the subject of...
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    introduction

    Hi all, new here to the forum but I've been active on the pool and spa forum for some time. thought I would join here but just put it off. I'm probably best known for my experiments with purge products and biofilms, where I have a very long blog post describing my experiments, but I'll spare...