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Modern Spa Sanitation Systems
Tobywankenobe posted a topic in Hot Tub Water ChemistryGreetings: I have a small, 210 gallon hot tub with ozone on the way, so I need to figure out sanitization. It would seem that “Nitro’s Approach to Water Maintenance” remains the Gold Standard here, even though it was written 11 years ago. If you spend any time at all searching for best spa sanitizer systems, you’ll come across a plethora of more recent advancements such as salt water systems, mineral systems, enzyme systems, etc. that all claim to be less work and provide much better water while using less chemicals than Nitros’s method. Does this still remain the Gold Standard? For example, one thing Nitro doesn’t mention is how an ozone system might impact water balance and sanitation. Ozone systems seem to have also recently become something of a Gold Standard as well, so if you have an ozone system in your spa, does it mean you should adjust the parameters Nitro suggests, and if so, which ones, which direction, and by how much? Or perhaps is ozone simply another marketing thing like salt water, mineral filters, enzyme systems, etc.? My gut tells me that Nitro’s method is correct even 11 years later and was also pretty much the standard 10 years prior to Nitro publishing it. My gut also tells me you need chlorine to get rid of organics (I sweat so much) and that ozone will support that but is much better against pathogens, flora, and fauna. Please help educate this ignorant hillbilly prior to his tub arriving.
Hi All, I have followed Nitro's advise on hot tub chemistry over several years with great success. I recently purchased a Hotsprings tub with the ACE salt water sanitizing system. It calls for the following parameters: Salt - 1750 ppm Hardness - 50 ppm Alkalinity - 80 ppm pH - 7.4 Chlorine - 3 ppm When I plug these numbers into the Pool Calculator, it gives me a Calcite Saturation Index of -.86, which is way lower than Nitro's suggested 0-ish. Does anyone know, if I dial my water in to these levels, what the possible negative affects will be? Thanks in advance
I need a little help. I am smart and genuinely interested in keeping my hot tub as perfect as possible, however, I also suffer from this lovely thing called “chemo-brain” that makes me very absent minded. They tell me this will eventually go away (in 5-10 years!) but in the meantime I frequently forget to check my chem levels. (I also have a hell of a time remembering to water plants, thankfully the dog still gets fed!) We have a 380 Gallon Caldera and I had been using the Dichlor-bleach method, but would miss a day or three at a time and that was worrying me since sometimes the chlorine would get to 0. (Almost never more than three because I love going in!) I switched to the Nature2 using MPS/soak and Chlorine (bleach) shock on a roughly weekly basis. My thinking was that it was a slightly lower maintenance way to maintain the spa. That’s what I am doing now however I suspect that the sanitiser levels are still getting too low sometimes as well. We had people over a few days ago and we all noticed a faint odd smell (mildew-ish if I had to describe it) despite having added MPS prior to the soak and verifying the levels were higher for the anticipated bather load. I am now thinking that the Nature2 is not going to be the right system for me with my limitations. I'm thinking that getting a salt water chlorine generator might be the best solution for my well-intentioned but spacy brain. I know a SWCG isn’t a set and forget solution, I'm not expecting it to be, but I’m thinking it will provide some stability to the system that I have been having difficulty managing on a daily basis and for about $300 that seems well worth it. I’m not sure how a SWCG maintenance routine would work but my thinking is: Each fill balance the water as usual, add boric acid to 50 ppm (still a good idea with SWCG?) and 100% pure cyanuric acid to 30-40 ppm. Add whatever sort of salts need to be added and activate the SWCG. Continue to check levels the same way that I have been to maintain balanced water and add bleach when necessary and/or for high bather loads. Does this seem like a good plan to make sure the sanitiser never dips below zero or am I seriously missing something? If this is a good idea and anyone has more experience with SWCGs in hot tubs I’d love suggestions. I’m thinking of either the TechniChlor 220 http://www.amazon.com/TechniChlor-220-Saltwater-Generator-Chlorinator/dp/B003TL8UQS/ref=sr_1_cc_1?s=aps&ie=UTF8&qid=1369961603&sr=1-1-catcorr&keywords=TechniChlor+220 ChlorMaker IL http://www.amazon.com/ChlorMaker-IL-Saltwater-Generator-Chlorinator/dp/B005L9AT8S/ref=sr_1_1?ie=UTF8&qid=1369961510&sr=8-1&keywords=ChlorMaker+IL Chem-Geek and Waterbear I'd especially appreciate your input, I've come to respect you both pretty highly in reading over old posts and your help already since I've joined.