Since temperatures heated up towards the end of last month, the water level has gone down and down.
I was actually concerned that the pond liner may have received a puncture but I think it must be too soon after construction for that (fingers crossed). And as it has been raining a bit over the last twenty-four hours, a few drops have boosted the falling waterline.
However, not by much and I am loathe to top up the pond with tap water. Not only is this an expense and a drain on resources, tap water isn’t good for a pond. The chemicals in such a body of water will take days, if not weeks, to evaporate and in the meantime will no doubt harm micro-organisms in the water. (Here’s an interesting webpage about what you might find in your pond water viewed under the microscope: Protozoa and other pond micro-organisms.)
Still, as always, it is an interesting journey, observing a year in the life of a natural garden pond.