Filling a closed loop system is a nightmare. It may take you weeks before you get all the air out. I have tried both ways and inline pump outside the reservoir is the way to go IMHO.
Putting a "T" at the top of a closed loop system helps a little, but it still is a nightmare to bleed and fill.
With a reservoir, I fill my system in 45 seconds, all air is gone within a minute or two.
|