At an old A.A.Co. 6 feet X 8 feet slabbed well on the property 'Yarrabah', there is scatched into an old galvo tank, the following,
"a horse walks 12 and 1/2 miles
to fill this tank with the twin
112 litre for each bucket
It just so happens that 112 litres equals 25 gallons. Perhaps the shepherd was European, and used litres instead of gallons? As they were twin buckets, equals 50 gallons. Times 192 buckets equals almost ten thousand gallons, which was the size of the tank.
There is still some remnants of the wooden structure left at the site, although it was demolished decades ago when replaced with the windmill.