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If you have a "problem" pool (with heavy bather load), a community
facility or would just prefer not to swim in chlorinated water, the
For Pool Professionals: Bromine is a far more efficient sanitizer than Chlorine, slightly more complicated in use and slightly more expensive. However, your labour is the most expensive element in any pool plan. Once you become familiarised with the use of Bromine you would most certainly find that the frequency between visits can be reduced dramatically and those time consuming problem-solving visits eliminated completely. Please study the following comparison of the two plans. Also see the Bromine Annual Schedule for precise usage instructions. If you need help or advice regarding the use of Bromine in Costa Blanca please contact CB-Swim. clean@costa-blanca-clean.com
Both Bromine and Chlorine
work well as sanitizers. Both have good and bad points. Perhaps this all sound complicated but below you can compare the two products individually.
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CHLORINE |
BROMINE |
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GENERAL QUALITIES |
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Chlorine is a gas and can only be used for domestic pool sanitation by combining with other chemicals. Additionally it is destroyed by UV light of which we have a lot in Costa Blanca. |
Bromine is a solid and a very similar chemical element to Chlorine. Bromine is also affected by UV light but, unlike Chlorine, it remains in the water for reuse. |
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Chlorine kills bacteria, controls algae and combines with the remains and other debris in the water (bather waste, dust etc.) to form Chloramines (Chlorine + Nitrates and Ammonia). |
Bromine kills, controls and combines with debris (just like chlorine) and forms Bromamines (Bromine + Nitrates and Ammonia) |
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Cloramines are smelly and POOR sanitizers. |
Bromamines have little smell and are VERY GOOD sanitizers. |
| Shocking removes the Chloramines by breaking them down into gas form (Nitrogen and Chlorine) and both disappear from the water. |
Shocking also removes the Bromines by breaking down the Nitrates into Nitrogen but the Bromine element remains for re-use. |
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For optimum effectiveness with chlorine sanitizers the pH of the water is critical and must be kept between 7.4 and 7.6 |
Bromine sanitizers work just as well with the pH anywhere between 7.0 and 8.0. |
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With Problem Pools (with heavy bather load and/or general abuse) the only way with Chlorine is regular (sometimes daily) shocking and long filter running times as this is the only way to control the Combined Chlorine (Chloramines).
Taking a typical problem
pool scenario: There is a gross bather overload & abuse, the filter is
small and the pump under-powered. |
Bromine systems are often the answer for Problem Pools because the Combined Bromine (Bromamines) are just as effective killers of virus and bacteria as the Bromine Sanitizer whereas Cloramines are quite useless. The pH can go as high as 8.0 and, with Bromine, the sanitizer is still working. Nevertheless it is still necessary to shock the Bromamines occasionally because, if they are allowed to build up the water becomes turbid. Cyamuric Acid build-up is not such a problem (as long as it is tested for frequently) because liquid chlorine (Sodium Hypochlorite) or CB-OxoShock (Potassium Monopersulfate) will release (oxidise) the Bromine Sanitizer without introducing Cyamuric Acid.
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BATHER EXPERIENCE |
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A lot has been said about
Chlorine being smelly and an irritant but, in fact, nothing could be
further from the truth. |
Bromine is commonly use in the USA and many pool owners, once they have tried it, would use nothing else.
Bromamines, like
Chloramines, cannot be avoided.
If you use a chlorine product to
re-vitalise (oxidise) the bromine, you may think that you are back to
having a chlorinated pool but this is not the case. |
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EASE OF USE |
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Nothing could be simpler than a Chlorine system. The Chlorine level is easy to measure and control. The only real requirement is that the water is shocked regularly and the alkalinity correctly balanced. |
Using Bromine is slightly more complicated and requires support initially from the pool supplier. CB-BromoBase has to be added, and replenished (usually twice a year) to allow for water loss, in order to establish a "Bromine Bank". Any chlorine product (or CB-OxoShock) is then added, on a regular basis, to maintain the "Free Bromine" level. |
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RELATIVE COST AND TIME |
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Chlorine is cheapest, without a doubt, both in terms of product cost and time spent. A chlorinated pool is pleasant and safe for bathing as long as it is maintained correctly and there is no bather overload or abuse. |
Bromine is probably
the only option for "problem" pools with an excessive
bather load. Most certainly, joy of swimming in Chlorine free water makes it all worthwhile. |
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Study the Bromine Annual Schedule for precise usage instructions. Understanding bather load and "abuse".
Even without the bathers the
pool purification plant has to deal with a certain amount of extraneous
material (dust, leaves, insects, pollen, air-born algae etc.) but it is
also designed to cope with bather load.
Now that's fine for the villa owner
and friends but, when the property is let to holidaymakers "bather abuse"
can easily occur. |
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Bromine vs Chlorine Technical Comparison |
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Chlorine |
Bromine |
Effective Disinfectant Form |
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Hypochlorous Acid (HOCl) |
Hypobromous Acid (HOBr) and Bromamines |
Reaction with Ammonia |
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Reacts to form Chloramines |
Reacts to form Bromamines |
| Major compound present is NH2Cl |
Major compounds present are NHBr2 and NBr3 |
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Considerably reduces disinfection ability |
Does not affect disinfection |
Bromamines or Chloramines as Bactericides |
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Chloramines are poor bactericides |
Bromamines are excellent
bactericides, and exhibit activity similar to HOBr. |
Bromamines or Chloramines as Viricides |
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Chloramines are not effective viricides. |
Bromamines are excellent viricides and exhibit activity similar to HOBr. |
Ammonia removal |
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Shocking is vital to reduce ammonia level. It is necessary to improve Chlorine effectiveness as a disinfectant by eliminating Chloramines. |
Bromine is an effective disinfectant
in the |
Disinfection pH dependence |
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Chlorine
is strongly pH dependent and is only |
Bromine has no significant pH
dependence in the range 7-8 pH. |
Eye Irritation |
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Chlorine
disinfection can produce eye irritation |
Bromine produces a significant
reduction in eye irritation. |
Halogen Odours |
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Most
"Chlorine" odours result from chloramines, which arise from heavy bather load, abuse or improper maintenance. |
Bromine has virtually no halogen odour. |
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Study the Bromine Annual Schedule for precise usage instructions. |
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