orangetree
Gold Member
I agree with this; there is also the issue of air that would start in the system if not bled. Which means we're all on the same page that it's not just the cylinders here - other parts of the system esp valves are possible points to introduce air.
From what I've read online it's really not clear if generally a system will effectively self-purge, especially what the "rate" and "size" of air bubbles the tank/filter system is designed to help dissipate, or if a seal (end or piston) in good condition will let any appreciable amount of air past, in either direction.
I would love some authoritative source on this ... the only "authoritative" (county extension, major vendors, etc) sources I found all seemed to say bleeding is required - which does seem to run counter to conventional wisdom on TBN. Which since both can be good sources of information, both are suspect to me here
