Wall connection and outlet are 3/4 "- the lead in the crease has only about 5 to 6 mm in diameter at low water pressure as is present in a 200 liter water butt, the water flows only through the tap Without this bottleneck would be the flow!. about three times bigger! Otherwise, the drain tap is good. This problem is apparently present in all outlet taps with crease. An alternative is a ball valve (without bow) with hose connection and plugged hose.
