That's easy — just pour water in. Take a 5-gallon bucket filled with water, and then slowly pour the water in (think about the rate which rain water may enter the pump) until the float triggers your pump to activate.
How do you drain a dehumidifier to condensate pump?
https://www.youtube.com/watch?v=EmWuaIG8fS8
Can a sump pump and dehumidifier same circuit?
It's also possible there could be more loads connected to this circuit. I would not recommend doing this. However, if you know that only the sump pump is connected to this circuit and if you can operate the sump pump and the dehumidifier separately, so that neither of them can run at the same time, then it would be ok.Sep 24, 2009
Do I need a dehumidifier with a sump pump?
Generally speaking, if your sump is running a lot, the humidity level should be elevated and yes, you would want to continue to run a dehumidifier.Apr 16, 2014