It's not perfectly sealed, but it slowed the flow down enough to back up the water a bit, and after an hour, was 10 cm deeper.
|An hour later|
At least hauling water from the stream is easier now!
And to the mini-project, which is not mini at all, I started hacking out the feeding troughs in the cow stall on Tuesday, after work, and did 2 or 3 hours each evening, and a couple more on Saturday. In fairness, it's going a bit quicker than I expected, but it's quite well built, so not a quick job. Here's a quick vid taken on Sunday.
Tomorrow, we'll get a container to load the rubble into, and once that's done, I may take part of the floor up. Very tempted to take it all up, so I can get a floor with a gentler gradient and proper drains, but let's see.