I am going to build my next one soon. Just trying to decide on a valve and a few other details. I plan to make a very thorough how-to with lots of pics. I will post it on all the boards when I do. I believe the lift should be around 80lbs since I used the same dimensions that Riffe has posted for their float. I'm not sure what PSI the Riffe (not the Atmos) is rated for or even what mine is filled to, but mine is very firm and I max out my pump filling it, so I believe it should be somewhere between 10 and 15 PSI. I'm going to check it with a gauge today. I thought I had posted a pic of the bladder but I see that I didn't. I'll do that now.
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