![]()  | 
	
| 
	 | 
| 
		 
			 
			#1  
			
			
			
			
			
		 
		
		
	 | 
|||||
		
		
  | 
|||||
| 
	
	
		
			
			 sounds like it is working the way it is supposed to ie the ozone generator is only given power when theORP level is below the set point, BUT I agree that you probably need to calibrate the probe as an ORP of 450 without ozone seem improbable... at least in my tank anyway  
		
	
		
		
		
		
		
	
		
		
	
	
	![]()  |