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				__________________ 150 mixed reef 14 fish 4 shrimp 50+ snails 55 sump long spine urchin 20 snails Shawn | 
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			#2  
			
			
			
			
			
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|   System including sump about 150gal. Probably looking at a pump style system. I should have asked...what do kids have to do with it? | 
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|   Quote: 
  I use AutoTopOff dot com's auto top off solution on both my tanks and have been for a while now. The thing I like about theirs is that there's a backup shut off switch. You can easily make your own employing the same components and I tried but I could not find those float switches in the city for the life of me. If you can find those float switches you're off to the races. That's pretty much all it is. Mount float switch, when water drops, float switch activates your ATO pump which pumps fresh water into your tank which raises the float switch back to the OFF position. | 
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			#5  
			
			
			
			
			
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|   Thanks for the replies. I work in the oil & gas industry so I have a good understanding of level controllers and access to suppliers although most of ours are pneumatic. I'm sure if I do a bit of digging I could find an electric one. | 
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|   recent thread (ATO w/float valve and gravity or my case direct ro/di) 
				__________________ my tank | 
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			#7  
			
			
			
			
			
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|   If you dig around on autotopoff.com's site they list parts and sell the float switches pretty cheap. |