I put my hops in loose.
I strain them through a nylon net that I place on my primary bucket. Then I sparge them with a gallon of cold water.
When I used pellets they are so fine that some of the residue gets into the primary.
I've experimented by using 2 nets, but that took so long to sparge that I quit it during the first time I tried it.
Now I mostly use whole hops, but I still use my net and sparge.