Product review (4 stars): Easiest Way to Fix the LG Drain Hose
I have replaced this component at least 5 times since I bought the washer.  You can replace the hose without any disassembly of the washer.  all you need is an adjustable wrench or Vise grips and a 4x4 block of wood.

1. Unplug the washer, remove the water supply lines from the taps, and free up the drain hose.
2. With help lay the washer down on its SIDE, resting on the 4x4 block.  Not the front, or the back. I prefer the left side down as you face the washer.  You now have clear bottom access without using a screwdriver.  The drain hose will be the closest thing to the bottom.
3.  Loosen all the clamps and save them for reinstallation.
4. When replacing, remember to put the pressure clamps onto the hose and first place them towards the center of the hose so you can easily slide the rubber ends onto the hard plastic drain outlets.
5. Carefully raise the washer back upright with help.
6.  Replace the connections and you are ready to wash.

It should take about 5-10 minutes to effect the repair.

I have to replace this component about every 2-3 years because of foreign object damage and the number of times the washer runs with an unbalanced load.

Unbalanced loads place a lot of strain onto the rubber bellows section of the hose as it is anchored at three other places.  This is almost always where it leaks.