This is how I clarify my beer using gelatin. Gelatin is by far the cheapest and best fining agent for homebrewers and gets results in just a few days. If you're vegan, biofine clear works almost as well and is the same procedure minus the microwaving.
1/2 a tsp in 1/4 cup of water is enough for a 5 gal batch. Measure it out in a microwave safe measuring cup.
Nuke it in the microwave in 10 second bursts, stirring with a thermometer in between, until it reaches 60-65C. Just like making jello, it will dissolve and go clear.
Pour it into your keg, purge the keg with CO2 3-4 times so you don't oxygenate the beer and give the keg a gentle swirl to mix it in. Same process can be done in a carboy, but it works best if the beer is already cold. I usually wait until it's carbonated, roughly a week after kegging.
Leave it for a day or two and then pour a pint. You'll see all kinds of sludge come out, but after that it should be much clearer and will only get better as time goes on. This is a mega hazy IPA that I obviously did not use gelatin on.
This works well for me and speeds up aging times so beer tastes better faster. Plus you'll look like a pro and not scare the Coors light drinkers.