[scott216]

I have a Dynabrade filter/regulator/lubricator combo on my compressed air line going to my power draw bar. The power draw bar doesn't use much air. Even when no air is being used, the oiler makes a bubbling sound. The bowl's o-ring seems to be in good condition. I have the bowl very tight. Is this bubbling normal? I attached a video, there's not much to see, but you can hear the bubbling noise.

[rgdynabrade]

Do you know what the viscosity of your oil is? For the Dynabrade FRLs, the viscosity has to be 102 or lower. I would recommend looking at the brand you are using and pulling up their SDS to see what the viscosity is. That sounds like it may be what is going on.

[mactec54]

I have a Dynabrade filter/regulator/lubricator combo on my compressed air line going to my power draw bar. The power draw bar doesn't use much air. Even when no air is being used, the oiler makes a bubbling sound. The bowl's o-ring seems to be in good condition. I have the bowl very tight. Is this bubbling normal? I attached a video, there's not much to see, but you can hear the bubbling noise.

You have a small Air leak somewhere in the delivery system