Mightychan
Member
I replaced the pump in my shower sump box a few weeks ago. Now the box fills with water, the pump turns on, but it doesn't move any water. I can move the float with my hand, turning the pump off, and then restart the pump, and it pumps the box down fine. What the heck? Any idea why it won't move water at first but then will after I shut it off and back on? Thanks.