So how many litres can a 47kg sized gas bottle hold?
Followed a another thread on here and found this:
http://www.towsure.com/product/Propane_High_Pressure_Hose
Would that be a better idea than a reducing bush etc?
Nothing better than a hammering session!!
If you ever need to use one of those hoses there is a non return valve in the bull nose that can cause a bit of head scratching if you want to use the hose to pass air or whatever in both directions
Don't ask
It is easily removed though