Originally Posted by
aquamanic
Sorry, I mis-read your post and thought you were talking about your ATO top-off. For a ATO reservoir, you're right, 2 floats is the way to go.
[ATO Reservoir]
If switch1 CLOSED Then ON
If switch2 OPEN Then OFF
switch1 is the bottom float. When down/closed the RO pump turns on. It will stay on (because there's no SET statement) until the top float switch2 goes UP/OPEN. Then when water is consumed from the reservoir, nothing will happen again until switch1 drops indicating the cycle should repeat.
Obviously, this should be tested before putting into production!
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