I as told on another board by a Plant Scientist that I should consider switching to Calcium Hypochlorite because it's breakdown product is Calcium, not Salt!
I've used Calcium Hypochlorite in the past with good results,...BUT for me the trade offs aren't worth it:
(1) Doesn't entirely dissolve which leaves a mess in whatever it's mixed in. (Adds up)
(2) A white residue is left behind (calcium) on anything that the mix comes in contact with during spraying. Seems no matter how thorough your "watering down the surroundings" the white residue always ends up showing up when dried. This is probably the biggest hurdle to jump when considering the use of Calcium Hypochlorite.
But it's still fun experimenting with things like this!!
Yeah, it is messy to work with, and leaves a nasty film. But it gets us away from the Sodium that kills plants. It is always fun to look at other alternatives. Many are dead ends, but the journey is what is fun.
In pools there are hundreds and typically thousands of gallons of water,..the small particles are dispersed throughout and are still there,..just not noticable. Not to mention the amount to treat a pool are nothing comapared to what it is like trying to mix up roof cleaning mix in a small volume of water.
Small amount of water,..and LOTS of CH,...is gonna make a mess.