Top load Whirpool 15 year old with stinky musty smell. Grunge around the top of the inside barrel. I suspect there is a ton of grunge on the outside barrel as well as stuck to the outside of th e inner barell. I want to clean both. How do I take apart the barrels (and put back together) so I can clean it? Thanks

I have a KitchenAid 25cu ft side by side with icemaker and water dispenser. The refrigerator is aprox 10 years old, model number if that helps is KSRS25QGAL01. The water dispenser stopped working a couple weeks ago, as in no water would come out at all. This morning, just the opposite. When I woke up this morning I was greated with a flood on my kitchen floor. Currently I turned off the water supply shutoff to the refrigerator. I'm thinking something inside the door itself a valve or pump is not working but have no real clue at this point. Anyone have any ideas? Also, how does the door come apart? Does the face containing the water dispenser/ice dispenser come off from the front, or does it all happen from the inside out?