nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqykddq7nmfd8cd0hupl8fnsmmuhtg55zusm6de4fjecmrhsx4x97qx8hm63 They're not U-shaped, they're snoothstep-shaped :) I felt like V-shaped look a bit too harsh here

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqykddq7nmfd8cd0hupl8fnsmmuhtg55zusm6de4fjecmrhsx4x97qx8hm63 nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq7awtznnk6vhc4q689zf0xds2a4uydanj8u8ljcyr8m9waamquzkskf3vpz would say it depends on how linear the water level lowers