Quote Originally Posted by Watermom View Post
The reason for the bath tub test is to try and narrow down what might be causing your child's rash. If you test each of those items one at a time and she does not have any reactions, then you can drain your pool and refill and use those products only and she should be fine.
Got it. My thought was that those were all pretty well known chemicals that were "safe". Having read more, including PoolDoc's threads, I understand that nothing is really "safe" in this kind of mystery. Sometimes, I wish I could take back messages where I say something dumb and then realize my error. :-)

One practical question I have is quantity of each chemical. How do you scale it down to a bathtub? I saw in one of the threads PoolDoc posted a reference to 2 teaspoons of bleach. Does that scale the same for things like Algicide and pH Down? Or is there formula to use?

Thanks for the clarification, Watermom!


Donovan