unclog pump, i used a m8 rod with a roud head nut on it, so it usses the housing part as a center.
you have to use it in short burst otherwise the water probaly will go over the sink.
If you put it in reverse it sucks, that can help to unclog
i use cura for printing and i put the settings in support at 70% than it is easy to remove ( i learned this from Eportillo5000 Thanks :) )
here is a link to the video
my drill does 2000 rpm at max
also have a look at my other things for more interesting stuff