Good Morning Fish, not sure if your still swimming with us...been a long time.

You had stated that "I've used up Dura Skrim because I made some cut on GB when tried to make bigger hole and had to re-do GB with new Dura-skrim." On my system I have two, 6ft seams...been about 10 mo. with not problems

To make a seam / repair for the Dura liner I took some small piece of the liner as tried lots of different methods for bonding them together. By over lapping 2 pieces with different cements, then placing it in water for 24 hrs. Best by far was "Christy Red Hot Blue Glue...PVC Pipe Cement", easy to use, dries quickly and any hardware store should have it.

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I HAVE NOT FAILED. I'VE JUST FOUND 10,000 WAYS THAT WON'T WORK. Thomas A Edison