trader_4 wrote, on Wed, 25 Jun 2014 15:21:36 -0700:

A lot of this pool stuff is just handed down and a lot of it is
wrong.

I don't disagree.

Take, for example, the pool-store recommendations to reduce
phosphates to prevent algal growth.

Sure, algae need phosphates, but, free chlorine, in and of
itself, kills algae.

On the other hand, I did try to source industrial lanthanum
chloride salt crystals (active ingredient in Orenda PR-10000),
but, failed.

So, if anyone here can get a good price on industrial grade
lanthanum chloride, you can make a killing on the pool stores!