reroute the hose with a loop in it so water stays in loop, not back flow so much.
my 2200 and 2000 gph pumps push water out well and far-but only one has an auto switch. i have 2 as i have deep bilges.
my otto switch is lower than my assigned pump, and a too late noisemaker on it for water level below
cabin sole. only heard that damnable scream one time automatic. was enough.
once my under
engine pump is done pumping, there is still water in my bilges, but mine are wet ones. i keep under
engine pump in a plastic collander to strain out stuff that falls into bilges. (hair, stuff)