
I keep it on hand and put 1/4 tsp to a gallon in every waterer....it helps keep down the algae and slime.
I ended up putting a swamp cooler in the new side of the hen house and it circulates thru the layer side. Brings the temperature down 20 degrees in that tin roofed area without the extra water from spraying down like last year.
I'll have o spray down the outside pens when the temps get really high. We have enough wind to dry out the area pretty quickly. Planted Sunflowers for shade on the west this year and they have to be watered.