Defective K-2006 Kit?

[PoolDoc]

Thanks, Waterbear . . . but I haven't seen that data. Could you email me (or post in the China Shop) the details on negative bromide / SWCG interaction?

Will adding some Borates be a better alternative over sodium bromide and polyquat?

Hi Droweye; I'm checking on the bromine / SWCG interaction, and will let you know, as soon as I have definitive info, one way or the other.

The "Once a Bromine . . ." pool page is is something I wrote 15 years ago, and is really only accurate with respect to pools on which BCDMH tabs (or other dimethyl hydantoin based forms of bromine) have been used. I revised that page somewhat to reflect those facts, but need to take it a step further. Where sodium bromide is used, on each conversion cycle (by chlorine) from bromide to bromine, a small portion of the bromide is permanently change to bromate. So over a period -- possibly a couple of weeks -- most of the bromide is rendered inactive.

BUT, there's no downside to using borates . . . unless your have a dog you want to breed who drinks daily from your pool or spa. (In that case, there's a small chance the dog might get enough borates to affect his fertility.) So, unless dogs are an issue, going with the borates is all good.