The Best ATO IMO ...(best auto top off in my opinion 2 cents disclaimer) YOLO FO

I use a micro switch based version with their Pump. It's amazing the kind of water that little pump can move, but it is noisy. The peristaltic pump is another piece of over built equipment from them, very nice piece.

I may have to look into that pressure switch if it works that well. The micro switches have been working fine, but I use two staggered as a mechanical failsafe and run time limits on the Apex for electronic failsafes, their version is much simpler.

Thanks for the review, the guys there are great to deal with also.
 
One thing to note on systems that use pressure switches, pressure switches can and do fail. I have a sump pump in my basement and it had a pressure switch that failed in the on position just this last weekend and the pump ran and ran and I was lucky to be around to hear it running and unplugged it before the motor burnt out. According to plumbing reviews by plumbers of that style switch you can expect about 2 years of service from a pressure switch before it fails.
With this in mind, I would have a backup in case the pressure switch does fail in the on position such as attaching the water line to a float valve above the waterline so it doesn't get crusted up with salt and will only see water if the water level gets too high.
I do like the avast system though, it's just that no technology exists that is absolutely perfect. Add a little redundancy for high and low water alarms and clean them monthly is about the best plan.
 
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