Thomas R Millstone , NJ October 14, 2017 Appliance: Samsung Washer WF448AAW/XAA Samsung Washer Wf448aaw/Xaa: Plastic check ball valve was leaking. How to replace Washer Check Valve Ball. Ordered the part of the check valve body that was leaking and a new ball for the check valve, put the parts together and it fixed the problem, the only problem was plugging the small tube which my machine does not use, I simply made a small pin and glued it in the small tube with some high strength lock tite, easy fix !! 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes