i use a fuel filter on the pickup in the bottle for my pump, and one in the carb feed line... i never really seem to have much debris in my carb filter, i think in 3 months ive had 2 or 3 bits of s*** but maybe a bit more in the pump filter

funny thing is, when i was having trouble starting the MDS i dug out a big bit of grass that was stopping the fuel flow... it was after the fuel filter so i have no idea how it got into the fuel line in the first place, letalone past past the second filter