What is the difference between "free chlorine" and "chlorine"?
631328
According to Aqua Chek's website, A: Free chlorine refers to both hypochlorous acid (HOCl) and the hypochlorite (OCl-) ion or bleach, and is commonly added to water systems for disinfection. When ammonia or organic nitrogen is also present, chloramines known as monochloramine, dichloramine, and trichloramine will quickly form. Chloramines are also known as combined chlorine. Total chlorine is the sum of free chlorine and combined chlorine. The level of total chlorine will always be higher than or equal to the level of free chlorine. Free chlorine is typically measured in drinking water disinfection systems using chlorine gas or sodium hypochlorite to find whether the water system contains enough disinfectant. Typical levels of free chlorine in drinking water are 0.2 - 2.0 mg/L Cl2, though levels can be as high as 5.0 mg/L. Total chlorine is typically measured to determine the total chlorine content of treated waste water, often for discharge purposes. If you are required to measure and report chlorine levels to a regulatory agency, we advise that you check with your regulator to find whether you are required to measure free chlorine or total chlorine.
631329
Free chlorine is the chlorine in your pool that is available for binding with waste products in your pool water. Once bonded, it is called "combined chlorine" or "chloramines", and is what actually causes a chlorine smell. The sum of the two is "total chlorine". Once the chloramines (or total chlorine minus free chlorine, depending on your test kit) goes above 0.5 ppm, you should shock your pool.
1461541
Looks like it doesn't... MSDS says Acetone, Solvent Naphtha, Light Aliphatic, Propane, Xylene, Ethyl benzene, Toluene, Benzene. No saying that one of those chemicals won't have Chlorine in it...
2126517
Actually calling it a filter is a misnomer, a filter selectively removes (think of a sieve). This item does not remove anything, actually it adds something to the water: it adds vitamin C (ascorbic acid). Adding ascorbic acid to the water neutralizes the chlorine. If you want to know a little bit more about this, look at the page: http://www.fs.fed.us/t-d/pubs/html/05231301/05231301.html
566970
total chlorine and total bromine are on one pad and that is from CL: 0-10 BR: 0-20 Free chlorine goes up to 20. FYI there are only 4 pads, not 5, it measures CL/BR on one, then Free CL, PH & Alkalinity on the other 3. No Hardness test.
1326866
chlorine, yes. fluoride, only with the separate elements for such purpose. They're sometimes included when buying online, or just buy separately
998883
Have no idea whether there is a difference but the transparent blue is easy to see how much water you are putting inside. I wouldn't pay the extra money for no color. It works well and the blue is lighter than the picture.
286061
Really!? You filter it before it goes in or add the chemical to the tank, this has nothing to do with removing chlorine! :-/
1766245
Sorry it took so long to answer. My understanding is the only difference is the scent. Both smell fine. The Kleen Free is the new scent. A little fresher smell.
1196203
There are many different types of chlorine. They all do the same job but at different rates. There are benefits and cons to each. Using household liquid chlorine is not strong enough to sanitize your pool. This Power Ionizer takes the need to use chlorine away! When using a Power Ionizer you only need to shock once a week with a Di-Chlor or non-chlorine shock.
1917410
No, but it doesn't really need to, because you're not going to be drinking it, and it doesn't absorb through the skin, like chlorine does.
42481
It for sure does not contain chlorine, it says right on the bottle to not combine with chlorinated water. I would imagine it does not contain any of those other things as well, as if would make the solution quite dangerous
1727909
Neither,if u not gonna refill for everyuse just go get you some chlorine tabs.and you will need a cover for the pool.hope you enjoy
1029193
I think a better word is 'in-line' chlorinator. And of course the only time it will operate is when the pool pump in on. I believe the phrase 'off-line' chlorinator is a misnomer. Hope that helps clear it up for ya.
1164417
Yes. Over time the chlorine could have some negative impact, but none I have seen.
1080965
Good question: I reviewed several sources and found the answers to be complicated. My opinion is that Granular calcium hypochlorite contains 65 percent of available chlorine. Therefore, if you are currently using sodium hypochlorite (12%), then you can make an equivalent stock solution by mixing 1.5 pounds of granular calcium hypochlorite to each gallon of water in the stock solution tank. Source of information http://www.eng-tips.com/viewthread.cfm?qid=93148 The solid form (Calcium Hypochlorite) seems easier to use which is why I purchase that one. Additionally, the cost per unit of chlorine from the calcium hypochlorite seems to be less expensive. Again, sources of information show differing numbers including the amount of free chlorine released from each unit. It may be a good idea to try each one then test the resultant solution for the amount of available Chlorine.
874840
I don't know. Maybe you can contact the manufacturer directly. If they are talking about the dissolved ion, chlorine could come from salt which is sodium chloride NaCl. This may be listed so as to prevent precipitates from forming which could cloud up your water. Hard water has calcium carbonate in it and free chlorine could form calcium chloride which will form a solid. Usually when I think of chlorine I think of pool chlorine, which is toxic to life. But that is a chlorate, ClO3, chlorine with oxygen.
1936463
I don't know. I only used it to remove chlorine. You would have to ask the manufacturer.