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I have two interconnected ponds, the smaller pond 3.672m2 feeds the upper larger pond 6.9m2 and a waterfall returns flow to the lower pond. During the course of 24hrs the lower pond falls by 1cm approx with the pond pump running for one third of the time ie 8hrs. When the pump is off a non return valve keeps the upper pond at a constant level.
i was wondering whether 1cm loss in 24hrs to the smaller pond is fairly typical in the summer? It seems a lot but water is evaporating over the surface area of two ponds and there is also the waterfall to consider. Any comments much appreciate.
i was wondering whether 1cm loss in 24hrs to the smaller pond is fairly typical in the summer? It seems a lot but water is evaporating over the surface area of two ponds and there is also the waterfall to consider. Any comments much appreciate.