What I've read and what one can also observe in the FFM are small, fine particles in it, which is a good thing.
With me was observed that, at the point where I gave the agent to the pool, some of these, particles are left at the bottom of the ground cover. However, that has disturbed neither plants nor fish and then spread with the water movement.
You should shake the bottle well before using the means (because these solids deposed markedly below in the bottle) and I bring it to a point with good flow one, so that is all well distributed (is basically also a matter of course) ,
With the water test that I use here (droplet test sets JBL) could I measure any change in the water chemistry, the tap water here is good and most of the values in a good area.
I can even give a hint for a pool remodeling unfortunately gabs light blue-green algae. Here the Easy Life Easy Start has helped well and after 14 days and 3 applications, they were not really surfaced off and are again.
I will not advertise the company make but for me really helped it.