After missing the winter rains, I just did a tap on the side of the tanks
and they are 1/2 full (optimistic) they are definately not 1/2 empty. Have
been using them for the house & the evapourative ac. Noticed the pads are
easier to clean as the gunk is on the outside. A bit more rain and will
connect the hot water to them as well. Measured 5mm yesterday and 12mm this
morning. Love the rain but it does disrupt the wheat harvest going on at the
moment.
Jim