UPDATE: Drip leaks continued into this season. Practically had entire inside and outside covered in JB Weld, but drips still bled through (Sill perplexed how this happened - you can't even see a hole but drops escape. I guess the pressure did it.) I found a replacement lid for $30 by Hydromatic - identical to my Black Diamond. Working great again. Still interested in why this may have happened so I can prevent a recurrence. Thanks!