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Now that crap right there is why my wife rolls her eyes at me… there are people running 85-90 PSI tire pressures on these things without issue, so it is hard to say why yours are having issues. You might have a flaw in a hub that eats seals…

The PCU uses whatever pressure the wet tank can provide, but with the restrictions and the tires ability to absorb air, all the system plumbing and axle seals don’t really ever see peak system pressure . If you connect air like I described above on the PCU output, you can only apply air...

Like Superman said, The wheel valves are only open and the axle seals only see pressure when the system is actively checking, inflating or deflating. All other times, the system is de-pressurized and the wheel valves are closed… The problem with troubleshooting leaks on CTIS using the...