You're not alone in thinking it could be as simple as digging, laying pipe, and covering it but unfortunately, you're right to suspect it might be a bit more complex. A French drain needs a place for the water to go, otherwise it just relocates the problem underground and can eventually lead to saturation or even flooding in unexpected areas.
If your property has a slope, you might be able to daylight the pipe at the end of the trench, basically letting gravity do the work and sending the water to a lower point where it can safely disperse. But if your yard is flat or boxed in, it gets trickier. In some setups, people connect the drain to an existing stormwater system or even install a dry well to allow for gradual seepage.
In Singapore, for example, where yard drainage issues can be a big concern during heavy rains, it’s common to consult with professionals to ensure the system has proper exit routes. When I was dealing with a similar issue, I spoke to Plumber Singapore, and they helped me understand the flow requirements so I didn’t end up creating a hidden mess under my lawn.
If you're considering a DIY route, it’s worth at least checking out some guides or speaking to a local expert. For more info on how water systems work in different property setups, their
website has useful resources that can give you some clarity, even if you’re just looking to troubleshoot on your own for now.
Hope that helps!