I’m proud to report the drain works perfectly! The house has seen heavy downpours since I completed this project, and the underground pipe now moves water away from the foundation and allows it to seep out of the gravel driveway, where gravity draws it toward a roadside city drain. And the basement? Nice and dry.
I left the open end of the drain temporarily exposed so I could monitor its performance the next time it rained.
Here is the paver walkway complete with concrete edging. Rainwater easily passes through the pavers with no ponding and escapes through the drain system, which extends past the foundation wall.
I topped the gravel bed with the old mortarless pavers to keep the walkway permeable.
This photo shows the daylight end of the drain shedding water after rain. Final step is to reapply more crushed rock to repair the driveway, then level and compact the surface.