Looking into the water tank
Living in rural Australia means collecting water for household use from the roof when it rains. The water is stored, in our case, in two 5000 gallon (6000 US gallon / 22,000 litre) tanks. I checked the water level (it’s pretty high) then reflected on the matter. (I cleared the leaves out before putting the filter back over the inspection hole).
[An entry to the December 4, 2004 “Photo Friday” challenge].