Speed of chlorine consumption

UKjames

Silver Supporter
May 1, 2020
116
United Kingdom
Does ph impact the speed at which FCl degrades over the longer term?

my ph was running around 8 And I seemed to be using about 0.6 FCl per 24 hrs. I reduced the ph to around 7.5 and consumption seemed to drop a fair bit to half to three quarters of that. Now the ph has crept back Up to 8 The consumption seems to have gone back up.

i am conscious that these are low numbers so could just be something else, like degradation of the bottle of liquid chlorine I’m using.
 

Chasarms

Silver Supporter
May 8, 2020
347
Dardenne Prairie, MO
It must be a very good UV blocker. Your consumption is minimal compared to most pools.

As for the change based on pH, it’s hard to say. Most people don’t test regularly with that level of precision anyway, so it could be the nature of the reagents at different pH levels. Or, some other anomaly.
 
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