Noticed my pump running during the night when there hadn't been any water usage, then checking things out in the am discovered that the check valve had a fine split running from the end of the threads towards the middle. An inch long. I don't think I tend to over torque, but aside from that issue any other experiences with low quality fittings rupturing similarly? I did get this at HD and not my usual plumbing supply which sells heavier, higher quality fittings.