youngfisher
Marine Keeper..
Is he agressive?
YF
A hungry Hawk is capable of eating a fish roughly the same size as itself.
Anything remaining after that is just residue that can be removed with a damp cloth while you rinse the pump
Far, far easier and it get to the places you can't, like the bottom of the impeller well and between the impeller blades too. Soaking each pump in vinegar should be part of a monthly maintenance plan once you are up and running, as it stops premature pump failure
Pumps get warm in the impeller area, making them prime places for Calcium deposits to build-up 

