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					Originally Posted by  mark
					 
				 
				even with a gate valve it's just slight adjustments to get flow balanced. Once that's sorted out shouldn't have to worry about your ATO 
			
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 I meant if he does not have a gate valve and only a ball valve it will be very hard to make those slight adjustments.  The Gate Valve makes life infinitely easier to find the sweet spot compared to the 1/4 turn ball valves.