Ranged, you can step back one or two steps into the Reservoir to attack these, and bring them towards you. Melee you can stand on the edge of the doorframe. Step into the doorframe to aggro the instantly respawned pair, step back if you need a breather, to alt tab, make some coffee, loot your pile of dead mobs, whatever.
Kill, loot, kill, loot, kill loot, kill loot, kill-loot-kill-loot, kloot-kloot… until your bags are full.
Bring a Travelers Tundra Mammoth, Jeeves bot, MOLL-E or Argent Squire on pony in order to get rid of all the greys that drop.
After an hour or two of lootlootlooting, head into the Auction House and sell what you found.
I wish you a lot of luck farming in AQ20, and thank you a ton to Elvine for sharing his tips for free over on his livestream. Go check it out, its one of my favourites. Follow him on twitter @ElvineLol and tell him @thegoldqueen sent you.
About the Author The Gold Queen is written by Alyzande. With many level 100s, 9 years expertise in making gold, 9 garrisons, 16k achievements, 1505 days played, and over 18m gold earned. The Gold Queen blog teaches you how to make gold playing World of Warcraft using ethical trading, auction house flipping, crafting, reselling snatch lists, and farming gold making.