@Phoenixlabs710 can you explain the “incident”?..and confirm that you’re using CO2 as a solvent? I would not recommend using a shop vac of any sort for emptying spent hydrocarbon columns…
OP has presumably been using a shop vac, and is having problems with material making it past the rather rudimentary filters many shop vacs ship with.
Stepping up to a shop vac with a hepa filter should solve that.
I offered a google link for q=shop+vac+hepa which at a minimum demonstrates that such critters can be had. Choosing one that is appropriately sized for their columns (or yours) is left as an exercise for the reader 
I’m also of the opinion that @rasputin is correct: custom made baskets are the slickest solution, and offered a link to some folks I think are up for the task of building said baskets ,who won’t charge an arm & a leg just because you’re working with cannabis.
as stated…I personally have used a garden hose, and compressed air.
Using water and pumping the resulting slurry WAS how I planned on emptying my 100gal extraction vessel…until the boss came to his senses and ordered a CUP instead.