The oring on the macro fitting is a 006, I dont think there is one in the parts kit so you can match it pretty well with one that is. Use a 3/32 hex key to tighten it(in the middle at the bottom of the fixing). You dont need any teflon tape or loctite.
It could be the oring that is damaged so not holding the macrofitting tight. You dont need to tighten them really hard just nip them up.
Taken from manual...
The straight hose fittings found on the Ego11 DO NOT
require ‘Loctite’ to secure them on the marker. These
are secured by the capture o-ring on the end of the
fitting. Only use a 3/32” hex key in the designated hole
inside the fitting to remove or re-attach the fitting (SEE
FIGURE 8b). When re-attaching the fittings DO NOT
apply too much force or the threads on the fitting/
receiving part may be damaged (remember to stop
when you meet resistance).
Last edited by frenchy2475 : 02-25-2013 at 10:09 AM.