7. Sluicegate through embankment (bund) on seaward end of kei wai. The kei wai is beyond the bund.
8. Gate closed by means of stout planks, with water escaping through gaps between them. The pegs protruding from the planks (one at each end) are used to raise and lower the planks with the help of two poles each having a hook at one end.
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