Auto top off systems

I use reefkeeper to handle my ato. It's using a switch which is through the sl1. But I think coralvue makes a really nice ato I believe.
 
Had good luck with autotopoff.com + aqualifter in the past - just have to make sure to periodically take apart the float valve assembly to prevent gunk from building up and preventing it from working correctly. Picked up a tune 3155 osmolator on sale from BRS during the holiday sales, and while it's a little more expensive I've had no issues as of yet.
 
For my 210 and 65 I am using an AutoAqua Smart ATO for both. Started off with just one for the 210, but was so happy with it that I picked one up for the 65.
 
I run float valves via gravity feed. Been doing that for a dozen years with no problems. Pretty cost effective I might add.
 
I have an avast on mine and love it. Works flawless, pulls the water over 30ft around bends corners, out of the barrel, through the wall. Pump is near silent and the float is a pressure switch. Works awesome!
 
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