Pump for water filled trays

[Charliehooks]

A lot of my trays are filling with water since installing the automatic watering system. Does anybody have a good pump that can pump this water through a small hose into a bucket? I've tried a couple but they all get clogged with fur or manure.

 

[hotzcatz]

Can you put a screen in front of the pump intake? When it's a really trashy liquid, folks will frequently build a wire mesh box around the intake and not just a screen across the inlet.