Okay, it rained a lot. Mostly the rate of just shy of one inch per hour, but peaking at almost four inches per hour (2 1/2 inches during a forty-minute period).
The run got wet. Well, half of it did. You'll recall that we extended the run; the bottom of the framing connecting the two halves acted as a small dam.
Most of the chickens were smart enough to go to the dry side of the run.
(Where was I? Well, it being a Friday, I was at work, quite dry.)
A couple of days later, once everything was dry again, it was time to put in a more permanent water management system: a French drain. The French drain wasn't invented in France, but is named after its inventor, Henry French. It's basically a permeable pipe surrounded by gravel to allow water (but nothing solid) to enter the pipe and flow away. Shortly after we moved to Dunrovin Station, we found terra cotta "weeping tile" pipe segments that were probably part of a French drain at the bottom of the pasture and installed around the turn of the 19th/20th Century, to keep the ground from getting too waterlogged for agricultural use. For our French drain, we used perforated polypropylene flex pipe with a "sock" to act as a filter to keep out solids.
|The supervision crew helping to evict the trench's residents.|
|Playing "X-Wing Pilots," making|
their run down the Death Star trench.
By the wheelbarrow-full, I moved the pea gravel from the pile to the trench. Caryl spread out a bed of pea gravel, and we laid the sock-encased flex pipe on top of the bed. Then pea gravel around the pipe, and finally covering the pipe. Filling in the trench went much faster than digging it out, maybe about an hour.
|The completed French drain|
A couple of weeks later we had our next downpour -- not as bad as the one that started this project, but enough that we were eager to confirm that the French drain drained. There's no reason it wouldn't; we just wanted to see it. And sure enough...
The water that would've continued to run downhill instead fell into the gravel, passed into the pipe, and drained away to