So my air tank has been leaking and I can't figure out where its coming from or how to eliminate it.
Pic for reference
I have hard lines so my first thought was there. Last weekend I pulled all the tubes and put a thin layer of Teflon tape on the ferrules to make sure it wasn't coming from the compression fittings. The weekend prior to that, I recut (with an airline cutting tool) both of plastic tubes that came from my tank to the manifold and the tube from the tank to the tank pressure sensor and it's still not gone. I've done a leak test on my bags and I know the manifold isn't feeding more air into them or draining air from them, but I'm still going from 150psi to ~80psi after about 10hrs. The problem is that the leak is so slow that I wouldn't get any results from spraying soapy water on my fittings.
I'm not airing out or back up in the freezing weather so I'd rather not have my compressors turn on every morning in the winter just to fill up the tank because of the leak.
euro+tuner over on the air suspension forum suggested that I put the supplied barb fitting that came with your compressors in place of your filter, and to put a balloon on the barb and let it sit overnight. This way, if the balloon inflates at all I know my check valve has failed. So I didn't have room to put the barb fittings on the ends of the compressors due to the way they are mounted, but I did have room to fit an NPT to PTC elbow fitting on the sides. I put the balloon on the end of the PTC side of the fitting and a rubber band around it so it sealed to the body of the fitting. One of the balloons started to fill up after a few hours and the other did slightly inflate. Awesome idea for checking really slow leaks. :thumbup:
The check valves are here and should be installed tomorrow. I'll do another 'balloon leak test' once they're installed to ensure that no more air is leaking through the compressors. I also ordered a BMS Clutch Stop that should arrive on Monday.