Borates Experience

[waterbear]

Wow! Thanks!
Research is way better than consensus (but takes a lot longer to read).

Why, I wonder, would the borate pool product providers label thier product dosage (from the EPA report) at ten times that rate? I

Simply because the research done in their test pools (here in St. Augustine by John Girvan, in fact, when he owned Proteam and before they were bought by Haviland and later by Biolab) determined that maximum algaecidal benefits (for the type of algae that normally grows in pools) were obtained at 30-50 ppm for chlorine and bromine and 50-80 ppm for biguanide santized pools.
Here are a few of the original patents:
http://www.poolsolutions.com/arc/pat...04,594,091.htm
http://www.poolsolutions.com/arc/pat...05,131,938.htm
http://www.poolsolutions.com/arc/pat...05,478,482.htm ("oxybor" patent)