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Mar12-12, 08:27 AM
P: 365
If I cut fixed thread, there is a big problem for retain water, it's not this case I study.

I cut only square thread. The fixed threads are circular. See message #10 for look the yellow square thread (but be carreful the message is for first method not second, look the drawing). The water is between square thread and fixed thread, this water follow square thread.