Tag axle air ride pressure - manual system

[Tinkerer]

I have a 96 Rexhall 36 ft on a F53 chassis and have a very small leak in the tag axle air ride. Receipts show this was completely replaced in 2004. I checked the connections at the compressor, bleed-off valve and gauge, bag connections and bags with leak detector without finding any smoking gun. It's loosing about 5 lbs over a 3 to 4 hours which I can manage. I know I need to find the leak and fix it. Any suggestions will be welcomed.

What I'm also wondering is this system does not have a air tank of any size so I'm wondering how moisture is handled over the years of use. Maybe moisture is not a problem and I'm over thinking this.

Thanks in advanced, Glen

[Tinkerer]

OK, just got back from a 2k mile trip. After about 800 miles I had no loss for the next 1200 miles. I guess some things just fix themselves.