Search results

  1. D

    biofilms - why 1-3ppm FC is not enough

    Bingo. Lots of blissfully unaware folks have high sanitizer decay rates due to live biofilms and just cover up problem by adding chlorine
  2. D

    biofilms - why 1-3ppm FC is not enough

    In your situation i would purge again. My spa was delivered with biofilms from day one. Took me several purges . This is my work that established ahhsome as the only serious purge product https://boisediesel.com/blog/2016/7/spa-purge
  3. D

    biofilms - why 1-3ppm FC is not enough

    Yea you did the right thing. You can also save some ahhsome dosed water in a bucket for the filters. In fact i do that anyway for wiping stuff down. In one of my experiments i showed that biofilms accumulate in the filter media by cleaning them first with a degreaser. Then when I had a...
  4. D

    biofilms - why 1-3ppm FC is not enough

    0 Got any references/ citations? This is precisely why a purge that breaks up and releases biofilms is most effective, and confirms why a traditional decon is relatively impotent in the fight against biofilms
  5. D

    biofilms - why 1-3ppm FC is not enough

    That's a good summary! I would only add to my own epistle that impecable water maintenance in a portable spa may reduce the need for shocking but not the need for purging
  6. D

    biofilms - why 1-3ppm FC is not enough

    Well my basic tenant is that those of us who are proud of our water maintenance skills are still vulerable to biofilm growth and that we might not be as immune as we think. The evidence is growing that the particular conditions specific to portable spas (associated with very high bather load)...
  7. D

    biofilms - why 1-3ppm FC is not enough

    This study was meant to study the effectiveness of 1-3ppm FC in a swimming pool, and there is no mention of CYA (that I found), so you'll have to draw your own conclusions on that. It was a laboratory simulation. I posted for the benefit of those who accumulate the weight of evidence that's...
  8. D

    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...
  9. D

    Bromine Levels with Ozonator

    I'm a bromine user and a big fan for 30 years. What you have noticed empirically I have established experimentally -- bromine with ozone is a beautiful thing! Here's a few thoughts of mine on the subject 1. this is a personal preference thing of course, but over the years I have developed...
  10. D

    Why clean a new Tub with Ahhsome?

    Most of us have acrylic spas with pvc plumbing so i have to admit it would be weird thing to me is that mfgs could go a long way (and with minimal expense) towards mitigating this problem but they don't. Its astonishing how much the industry is filled with nuance and emotion both on the...
  11. D

    Why clean a new Tub with Ahhsome?

    The notion that new spas are immune to biofilm contamination is a myth advanced by the mfgs and dealers who want you to think that. I have personally talked to both. Wet testing at the factory followed by storage and transportation delays, gives the bad guys ample time to grow...
  12. D

    Vacation fc FAIL

    yea I eventually got tired of the foam issue and quit using the phosphate buffer. the results were interesting though -- the feel of soft water with no measurable calcium is pretty cool, but in the end the cost of the buffer, and the anti-foam required, were not worth the trouble. But if you...
  13. D

    Vacation fc FAIL

    Im aware of a phosohate buffer product from bioguard that precipitates CA out and makes a grand mess in the process. I used to run my spa with 100 percent ion exchange soft water with no measurable ca. That avoided the mess lol
  14. D

    Bought house with hot tub, know nothing

    To add to the excellent advice already posted, and to "third" the recommendation of purging with Ahh-some, I have an additional tip and maybe a warning: with a used tub that has been sitting for a while, one purge with ahh-some may not be enough. What I highly recommend is, very simply, "purge...
  15. D

    Vacation fc FAIL

    While no substitute for real data on your spa, a good rule of thumb suggests 25 percent sanitizer decay over 24 hours. In actual practice i find that this is reasonable when measured at common usable levels, i.e. 3 ish ppm. It sounds like you're close. I had an interesting experimental...
  16. D

    Vacation fc FAIL

    Sounds like you are losing fc at am very high rate. Without the calcium problem associated with the refill i would normally suggest an ahhsome purge but given the difficulty you mention let me make a couple of suggestions based on my experience (this has happened to me too). Slaming works but...
  17. D

    New to Bromine

    I never perform experiments under load, prefering some down time when the water is stable . There's always a gap between theory and practice and one just has to play the cards that you've been dealt. Even if pool math (for example) could calculate the bromine production per quantity of mps...
  18. D

    New to Bromine

    I hear you, and although I can't answer your question precisely (chem geek is a physical chemist if memory serves. he could probably write the formula and calculate the right answer), I would offer that a simple experiment would yield the results you want. typically MPS is used, recommended...
  19. D

    New to Bromine

    I too just don't get why bromine is considered difficult, but its true that the retail market has contributed to this misconception. Some prefer the odor over chlorine; some find allergies to one vs the other, so its a personal choice. Here are some bromine myths 1. bromine is incompatible...
  20. D

    Ahhsome cleaner and no filter?

    You are Right of course but my point is that tsp, while a great degreaser, doesn't release biofilm which also takes up shop in the filter media .
  21. D

    Legionella Outbreak at Western North Carolina Fair Kills 4 Blamed on Hot Tubs

    Thank you im really glad to see that my work has contributed something useful!
  22. D

    Ahhsome cleaner and no filter?

    Late to the party here but thought I would offer a couple of comments on this topic 1. The reason you take the filters out when purging with ahh-some is because the amount of gunk released will likely plug up the filters and starve the pump 2. The dishwasher would be a clever de greaser to...
  23. D

    Legionella Outbreak at Western North Carolina Fair Kills 4 Blamed on Hot Tubs

    in addition to the obvious solution that proper spa set-up ( with shock and sanitation) could have prevented this outbreak, there is a related and less-emphasized factor that gives one pause when considering the purchase of a demo spa that has been used in such a situation: they had to have...
  24. D

    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...
  25. D

    Ahhsome

    Its interesting to me that none of the other products I've tested ...silk balance, seaklear, natural chemistry, etc, benefit from an overnight soak and I have tested this just to see . They all do their work within an hour or less. But ahhsome I find will sometimes release even more material...
  26. D

    Getting tired of the cloudy

    Looks like you are getting close to a solution but I'll offer my perspective. I ran a bromine spa for 20 years and only recently switched to chlorine just to try it out. I find essentially no difference between the two as regards maintenance. Bromine is very easy... What i have found is...
  27. D

    Ahhsome

    Good to see all the good purge posts here . I dont get a chance to visit here often but its good to see folks corroberate my findings and to see the benefits of purging with ahhsome. Btw u can let ahhsome dosed water sit over night . Just wipe down the water line and above. Rinse the rag in...
  28. D

    AHHSOME!!!

    You would enjoy reading about the comparitive tests I have performed with ahhsome and other purge products since approximately 2016. Ahhsome is definitely the purge of choice! https://www.troublefreepool.com/threads/a-purge-product-shootout.183012/
  29. D

    Question about refill procedure

    Yes mps will raise bromine if there is sufficient reserve. Although I use bleach ...save the mps for regular use . One other suggestion is to add a stain and scale product during the fill. Its good insurance against temporary localized imbalance as the water heats (for example in the heater...
  30. D

    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...