So, I bought the big hammerhead in order to both feed the DT, and to tee off the return line to feed a fuge, and possibly a carbon Reactor, and a UV unit. I can see that would make dialing in the system very very tricky. 
 
I have the tee in there, shut off for now with a TUBV.  
 
May have to just feed the fuge off this, and nothing else. 
 
molotov, those 1" gate valves aren't too pricey. I am finding it very usefull to mark the valve with a magic marker, and turn 1/8 or so at a time, on both the pump return and the drain. I had planned on using the TUBV only on the fuge, but another gate valve will definitely go in there. 
 
Tom 
		
	
		
		
		
		
		
	
		
		
	
	
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