Water stains on the basement ceiling but not visible on the kitchen floor but going under the kitchen cabinets. Investigation took me to a water leak inside the frig & initially thought it was the water line to the ice maker; but NO it actually was the main water line (fitting) going to the MWF Manifold (water filter assy)! Removed the fitting and found a 1" crack & small hole in the supply line above the securing nut. Watched the DIY video to replace the Manifold Assy and said I can do that; so ordered the part plus new filter & replaced it myself! Video was very helpful and job complete plus saved $$. Took me slightly longer than the video estimate but decided to completely clean the frig during the replacement. Now, fix the mess in my basement ceiling