The top weir is created to be a hook gate, while the decreased serves as being a box gate. Nevertheless, they get the job done generally self-adequately. The structure has an entire width of one hundred fifty.88 meters with four weir openings measuring a very well-defined width of thirty meters. https://duisburg86420.wikiconversation.com/6640795/sanitätshaus_things_to_know_before_you_buy