Showing Tag: ""combined chlorine"" (Show all posts)

Can you smell chlorine? Then it's probably a badly managed swimming pool.

Posted by poolplantcourses.com on Monday, May 23, 2016, In : Disinfection

When the disinfectant gets into the pool water, the free chlorine contained within in immediately gets to work and starts combining with pollution. Once chlorine combines it hangs around in the pool water and is no longer effective as a disinfectant and is now actually more of a pollutant itself. It needs to be removed from the pool by a combination of dilution and filtration.

Combined chlorine is measured by calculating the difference between the total chlorine and the free chlorine.

Free Chlo...

Breakpoint Chlorination

Posted by poolplantcourses.org on Monday, February 13, 2012, In : Disinfection

A few people struggle to fully understand the concept of what is known as 'breakpoint chlorination' during the pool plant operators course. In basic terms, as far as pool plant operators are concerned, breakpoint chlorination describes the point at which there is twice the amount of free chlorine than combined chlorine.

Imagine a swimming pool that has high levels of pollution. If you were to introduce some much-needed chlorine into the pool, it would quickly end up as combined chlorine as it ...
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