[Rombbb]

Originally Posted by steffenme1

I used a power bleeder to ensure everything was flushed out. Bit of extra effort but it worked well enough.

https://www.zpost.com/forums/showthread.php?t=1459366

Wow, that's an idea I didn't think of yet !

EDIT: just saw the link, please disregard below :-)

Was it hard finding a good fitting cap ?

What was your draining point, the return line ?