they were very professional and looked after me very well and they can certify pressure vessels, do scuba stuff and lots more i am sure as they had some interesting looking test equipment
they don't really fill on demand, more like overnight as they like to do a run of CO2 to save on waste / labor
best to give them a call to check best day to drop off and they are shutting shop over xmas
$45 for a hydro test
CO2 $ roughly
upto 2.3 = $22
then roughly $10 a kg getting cheaper the more you buy 5kg = $8kg (+-)
Any fire extinguisher place should fill no worries. I can recommend Eversafe in Morningside. Maybe not the cheapest (around $60-70 for a 5kg refill) but they had no issue removing my dip tube and pressure testing another old 2kg cylinder for a similar price.
Sorry King Brown, you were beaten by a Northside Novice PM by 7 minutes
I've decided to upgrade to a larger Mykegsonlegs bottle that I can swap and go five minutes down the road. It's just more convenient for me.
As far as I know there are a few places to get them filled around Brissy. I got mine done at Chubb Fire on Beaudesert Rd, Archerfield. Prices varied on who was manning the tanks at the time. Last time I got it filled it was $30. The times before that it was $50.