Complex sentence: From the Rosswiese reservoir, water is released north and down to the Kolbnitz station on the Möll River where it is then pumped further north and up to the Grosser Mühldorfer reservoir.
Split into simpler sentences: From the Rosswiese reservoir, water is released north and down to the Kolbnitz station on the Möll River. Water pumped from Kolbnitz is sent further north and up to the Grosser Mühldorfer reservoir.