I’m hoping this is it easy question/solution. I have three bildge pumps with three float switches located on the hull at the forward, mid, and aft locations. There is also a high water float switch located slightly higher mounted on the stringer in the aft and mid location. All except the two high water float switches test OK. The high water bildge switches do not turn the bilge pump‘s on when tested. What silly, stupid, or magical thing am I missing? Shouldn’t these two switches test? I found the high water alarm speaker and I have a high water alarm switch, which is on, located underneath the step along with all of the other battery switches.