mozhigopi Posted August 5, 2008 Share Posted August 5, 2008 How to reduce excess Free Residual Chlorine from swimming pool water? Link to comment Share on other sites More sharing options...
iNow Posted August 5, 2008 Share Posted August 5, 2008 Add more water to dilute it would be my guess, but I'm neither chemist nor pool owner. Link to comment Share on other sites More sharing options...
insane_alien Posted August 5, 2008 Share Posted August 5, 2008 you may not be a chemist but the chemistry is sound Link to comment Share on other sites More sharing options...
iPeppers Posted August 6, 2008 Share Posted August 6, 2008 Aren't there pool stabilizers and other stuff at the pool shops to put in that wonderful crystal blue water? Or is that stuff mostly to balance out the pH levels? Link to comment Share on other sites More sharing options...
imp Posted August 7, 2008 Share Posted August 7, 2008 Aren't there pool stabilizers and other stuff at the pool shops to put in that wonderful crystal blue water? Or is that stuff mostly to balance out the pH levels? Yes, there are. "Free" Cl in pool water kills small organisms, and in the process alters the Ph level of the water. In arid/semi arid climates, the available water usually has a relatively high Ph to begin with, and the activity of the Cl tends to drive it even higher; hence the need to add acid to bring the Ph down, but never below 7.0. I have never seen a need to reduce the Cl residual by applied means, unless way too much had been added; swimmers can easily tolerate 1ppm, and given a few days time, the residual will dissipate by itself. The generally recommended level to be maintained is, I believe, 0.3-0.4 ppm Cl. imp Link to comment Share on other sites More sharing options...
cellbioS Posted August 7, 2008 Share Posted August 7, 2008 There are chemicals to increase and decrease pool pH but nothing to decrease Cl levels. Generally, the Cl levels will go down after a little time (a day or two depending on how high a dose is). It's generally the pH that affects swimmers with itchy, dry skin and eyes, not the chlorine. We're pool owners and mainly worry about the chlorine so that nothing starts growing in the pool that shouldn't. Link to comment Share on other sites More sharing options...
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