Best bang for Ur buck ATO

[freeze]

If you want fail proof, tunze. Its about $200 bucks, and has all the bells so you don't flood your house. If it runs longer then 5 minutes it shuts off. Uses an optical sensor and then has a fload sensor backup so that if the water reaches the upper float in your sump, or tank, it shuts off. Best bang for your buck in my world as its 200 up front, but you shouldn't flood the place.