Quote Originally Posted by chem geek View Post
So the bottom line is that both the high chlorine level of 15 ppm and a 50 ppm Borates level are both a problem for dogs drinking regularly from a pool if they do that every day drinking, say, a cup or more every day and the technical limit below which there are no symptoms would be less than half a cup every day.
Richard

Thank you for posting that info. I'd been concerned about adding borates to my pool for exactly that reason, having remembered something I read a long time ago about boric acid being toxic to canines. I started to do some searching and was having some difficulty slogging through the chemistry - although it appeared that borates, and their chemical relatives, are NOT good for dogs at the level being considered for the pool. I had hoped to post a question about borates and canines after I could better understand the articles I was finding. Thankfully, I don't have to do that now!

I have a swimming pool fool (canine) that believes we constructed this wonderful outdoor water bowl specifically for her, so I'm certain she drinks more than a cup of water a day plus there's the amount that gets into her mouth as she splashes about and swims. She's approximately 55-60 pounds.

I guess we'll skip the borates and hope we don't have a repeat of the dreaded yellow/mustard algae this fall.

Thanks again for that info.