Re: bag speed
It all depends on how much p.s.i you are going to run. I'm running 120psi on nitrogen with 1/2 valves upfront and 3/8 valves on the rear and they lift at the same speed since there is not that much weight outback. Also, I would recommend using rocker switches instead of toggle switches since they are easier to control your dump and fill speed.
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Mexican
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