For folks that may go cruising and want to be rid of the hassles of cheap OR expensive electric pumps, contemplate a genuine upgrade.
A Jabsco 2 inch clutched pump on the main engine or noisemaker will push over 100GPM .
100GPM does a great job of even cleaning chain so it can be stowed below with no stench.
The ability to use it as a bilge pump, or fire hose should pay for the install expenses.
Just think of it as your insurance policy.
As a bilge pump or fire hose supply a large strainer that is easy to inspect, clean is a good addition.
Electric goodies work, for a while , good if you like boat chores ,
a belted real pump is a whole different style of boating.