Hi Everyone, 
I use Sweet PDZ in the poop board in my coop. Over time the PDZ has gotten low so I picked up a new bag. Do people take all the old PDZ or just add more to the existing?
 
Thanks in advance,
	
		
			
		
		
	
				
			I use Sweet PDZ in the poop board in my coop. Over time the PDZ has gotten low so I picked up a new bag. Do people take all the old PDZ or just add more to the existing?
Thanks in advance,
	
