I just jammed the tubing through the spigot on my big cooler. If I had a small one with a spigot I'd do the same thing. but when I do small batches I use one of those little igloo lunch buddies or whatever they are called. the ones construction workers use to carry an enormous lunch. no spigot so I just do what erock suggests and pull the bag, empty the work, replace the bag and sparge.