Recent content by freetothink

Did you mean swimming pools have lower surface to volume ratios? Surface area to volume = Surface area/VOL = Surface area/(Surface area x depth) = 1/avg depth If we are talking a home fish tank avg depth might be 1-2 ft and avg pool,is 5 ft SA/VOL pool = 1/5 = 0.2 SA/VOL tank = 1/1 = 1.0

Will do. Naples FL

Comment: You telling me ALL these references are wrong??? : 1) http://www.lowrycg.com/wp-content/uploads/2013/05/Cyanuric-Acid-It-Controls-Your-Pool-rev03.pdf "The rate of killing algae is directly proportional to the HOCl concentration. Therefore, the total chlorine concentration is...

Re: How quick does chlorine dissipate? Chemgeek. The Lincoln county NE health web site agrees with my assertion that kill times lengthen as CYA levels climb with fixed chlorine levels. http://www.lincoln.ne.gov/city/health/environ/pollu/pdf/Cyanuric.pdf They state: At above 50 ppm of cyanuric...

Re: How quick does chlorine dissipate? You said: the rate of killing pathogens and algae and oxidizing bather waste remains constant, and the ORP remains the same. comment: If you fix the free chlorine and let CYA levels climb (by using stabilized chlorine), you run into the case where...

I think the CYA curve flattens pretty quickly at around 20ppm as far as chlorine retention in sunlight goes so there are few benefits to going too much higher. In fact, something like 80% of chlorine retention is achieved at the 10-12 ppm CYA level.There are however three really big...

Re: Help me get clear water- what am I missing? Just saw this and don't think it is correct. If you add bromide to a pool it combines with chlorine to form bromine. When bromine disinfects, it forms bromamines (analagous to chloramine). When any future chlorine product is added, the...

Then how about taking advice from someone who is a chemist. http://dnr.wi.gov/regulations/labcert/documents/training/cl2breakpoint-c.pdf I believe this guy is a senior chemist with the state of Wisconsin. An excellent explanation of break point chlorination in his presentation.