My refrigerator has a single feed water supply valve at the rear of the refrigerator. Water is leaking where the plastic supply tube exits the valve. The valve has a quick connect on the bottom, and the plastic tube is simply inserted through the ring on the valve. I removed and inspected the end of the plastic tube, and actually cut off 1/4" so the tube is clean and square on the end. Following some video instructions I viewed, I reinserted the tube. Water still gushes out when we dispense water or the ice maker refills. Tried reinstalling the line several times and no change.

Before ordering a replacement valve I'd like to confirm that it's likely the otherwise properly functioning valve has failed in some way at the tube connection point. Thanks in advance.