Complex sentence: It is designed to extract water from the Rivers Chelmer, Ter and Blackwater, the three inflows merge in a small settling reservoir, where sediment is naturally deposited, and then pumped for treatment, and again to a storage reservoir.
Split into simpler sentences: It is designed to extract water from the Rivers Chelmer, Ter and Blackwater. The three inflows merge in a small settling reservoir, where sediment is naturally deposited, and then pumped for treatment, and again to a storage reservoir.