05-07-2009, 01:31 AM
I am going to say that Urethane is NOT as touchy. I have watched the vinyl people do as you say and sound advice for sure, as I too had ONE tube that was vinyl. It did blow from sitting in the sun, but it was very inexpensive and it wasn't the bladder, it was the nylon cover.
As far as my Urethane (SFC, H3, ALPINE, NAVIGATOR II., etc) I do let air out when going to the Uintas and a little out to go to Strawberry, but once there I don't have to adjust air at all. Never have from cold morning to hot afternoons...no problem.
So I do think it makes a difference. Not only the material of the bladder but the outer cover as well.
Man I would be exhausted or canoeing it if I had to keep checking the air as you described.....LOL
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As far as my Urethane (SFC, H3, ALPINE, NAVIGATOR II., etc) I do let air out when going to the Uintas and a little out to go to Strawberry, but once there I don't have to adjust air at all. Never have from cold morning to hot afternoons...no problem.
So I do think it makes a difference. Not only the material of the bladder but the outer cover as well.
Man I would be exhausted or canoeing it if I had to keep checking the air as you described.....LOL
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