ATO recommendations

[Wretch]

So my ATO has been acting up lately. Its beens been pumping fine for the most part but I have been getting lots of false readings and alarms. Then this morning I woke up to the stupid thing trying to flood my tank by pumping my ATO reservoir into my tank(pump was drawing air when I got up). Lucky for me its was just about empty and only got an extra gallon or so in my tank. So now I am in the market for a new ATO and was hoping to get some recommendations on what to get. Let me know whats worked for you. Thanks.