River Cruiser
Guru
- Joined
- Jan 25, 2013
- Messages
- 1,357
- Location
- US
- Vessel Name
- Northern Lights II
- Vessel Make
- Bayliner 3870
I bought a couple of vac gauges that have inches of mercury scale. Can anyone tell me a reasonable reading where I should change the filters? I have Dahl filter / water separators, than you