I've own a 1993 Procraft 180 with a big livewell.  At the end of a fishing day I always seem to have issues with crawdad pieces getting lodged in the drain valve or pump.  Does anyone know of any commercial products or homemade contraptions they use to prevent this?  The drain is located in a strange location.  I've attached a picture to give you a better idea of the location.  Looking at the picture it is just to the left of the center divide mold line.

 

Chris

You can try to make some sort of screen for it using mesh that you use for screen doors.

Screen door material?  Not unless you want it to rust away.

 

Here's several options: http://www.thmarine.com/products/Aeration-and-Plumbing/Aeration-and-Livewell-Systems/Livewell-Overflow-Screens