Here's my skimmer programming. Typically the float switches fail in the "closed" position, so I reverse mine by flipping the float on the stem. Thus when it's "closed" it will turn off my skimmer. I also shut off my skimmer when my return pump is off (as my sump water rises) and then wait for about 6 minutes when the pump is back on so my sump level stabilizes. I also have the ALD module that also shuts off the skimmer if there is a leak near my sump.
Fallback ON
Set ON
If Output Return_Pump = OFF Then OFF
Defer 006:00 Then ON
If SkmFul CLOSED Then OFF
If Leak1 CLOSED Then OFF
Here's my email alert programming too:
Fallback OFF
Set OFF
If Tmp > 80.0 Then ON
If Tmp < 77.0 Then ON
If pH > 8.40 Then ON
If pH < 7.80 Then ON
If Power Apex Off 001 Then ON
If SkmFul CLOSED Then ON
Defer 000:05 Then ON
If SmpFul CLOSED Then ON