Float valves screw up that's one big reason not to have it set up directly to an endless supply of water. I like my solenoid system dual nc valves and the boost pump hooked up to a wall type count down timer. Total shutdown every time with a very slim chance of failure. Not to mention I have a timer set for the same time that the system is running and I religiously check to make sure that the system is secure before I go to bed its to the point that I can't sleep enless I've checked. Even calling when I'm staying somewhere else for the night.
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