Andy's technique is pretty much what I've been using. Doing other pre-
flight things like washing the glider or uploading a task are much
easier with a standpipe fill.
I'd like to see your "recirculating" standpipe Andy, could you send
an image to staniforthjim?yahoo?com removing the questionable bits and
replacing with the usual?
The 27 bags are in two sections to prevent sloshing. Inner and outer
sections are connected by an internal pipe. Wondering if the bag gets
sucked down onto the pipe and an area of the bag with no holes in the
pipe traps the air. That's an easy fix! Perhaps I'll pull one out
today and have a look.
The factory bag vent tubes are left outside the cockpit for filling
and then connected to the T fitting in the top of the fuselage.
Jim